Comets are thought to consist chiefly of ammonia, methane, carbon dioxide, and water. Clay -- 1) A detrital mineral particle of any composition having a diameter less than 1/256 millimeter (4 microns). This indispensable reference tool contains nearly 40,000 entries, including 3,600 new terms and nearly 13,000 entries with revised definitions from the previous edition. %PDF-1.5 The term is used in a relative sense, and various size limits have been utilized. For other terms related to the Earth sciences, see Glossary of geography terms. Shatter Cone -- A distinctively striated conical fragment of rock along which fracturing has occurred, ranging in length from less than a centimeter to several meters, generally found in nested or composite groups in the rocks of crypto-explosion structures, and generally believed to have been formed by shock waves generated by meteorite impact. This indispensable reference tool contains nearly 40,000 entries, including 3,600 new terms and nearly 13,000 entries with revised Fault -- A fracture or a fracture zone along which there has been displacement of the sides relative to one another parallel to the fracture. Historical Geology is the study of Earth history and the evolution of life on earth - especially the past life forms that are preserved as fossils. Limestone is the most important and widely distributed of the carbonate rocks and is the consolidated equivalent of limy mud, calcareous sand, and/or shell fragments. Uplift -- A structurally high area in the crust, produced by movements that raise the rocks, as in a broad dome or arch. Bates and J.A. Mineral -- A naturally occurring inorganic elementy or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. The most common cements are silica, carbonates, and iron oxides. It is often sufficiently buoyant to float on water and is economically useful as a lightweight aggregate and as an abrasive. But in the rocks... Acidification:. The distinction between glass and liquid is on the basis of viscosity. Jackson (Eds. The Glossary of Geology (AGI, 1997) serves as a major source for many glossary terms. It is a high-pressure, extremely dense polymorph of quartz, produced under static conditions at pressures above about 100 kilobars and found naturally associated with coesite and only in shock-metamorphosed quartz-bearing rocks. Angular -- Having sharp angles or borders. ), American Geological Institute, 1984 . Carbonate -- A mineral compound characterized by a fundamental anionic structure of CO 3 -2 . 6. The term is often applied generically to all acidic precipitation. Bioherm -- A mound-like or circumscribed mass of rock built by sedentary organisms such as corals, stromatoporoids, or algae, and enclosed in rock of different lithological character. 1 0 obj The Glossary of Geology, The American Geological Institute's (AGI) premiere geoscience resource publication, is now available online. Jackson, Julia A., 1939-; Gary, Margaret. Physical Geology includes processes that affect the earth's internal and external structure, composition and other natural functions. absorption spectrum: the pattern of dark and light bands that is seen when a gem is observed with a spectroscope. a striking erosional form on the land surface. It is crossed by many distributaries, and results from the accumulation of sediment supplied by the river. The fifth edition of the Glossary of Geology contains nearly 40,000 entries, including 3.600 new terms and nearly 13,000 entries with revised definitions from the previous edition. <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Caldera -- A large basin-shaped volcanic depression, more or less circular, the diameter of which is many times greater than that of the included ventor vents, irrespective of steepness of the walls or form of the floor. Glossary of Geology, Fifth Edition (revised) AGI is proud to feature this Fifth REVISED edition of the Glossary of Geology. Metamorphism -- The mineralogical, chemical, and structural adjustment of solid rocks to physical and chemical conditions imposed at depth below the surface zones of weathering and cementation, which differ from the conditions under which the rocks originated. Slickenside -- A polished or striated rock surface that results from friction along a fault plane. AGI is proud to feature this Fifth REVISED edition of the Glossary of Geology. Acidification can be accelerated by human activities (use of fertilisers, deposition of Tektites average a few grams in weight. 2) A popular term for detrital sediment along streams or beaches, composed cheifly of pebbles and sand. Hydrothermal -- Of or pertaining to hot water, to the action of hot water, or to the products of this action, such as a mineral deposit precipitated from a hot aqueous solution; also said to be the solution itself. Long considered the … *  Most of the terms in this list from the Dictionary of Geological Terms, 3rd Ed., R.L. Sandstone -- A clastic sedimentary rock composed of grains of sand size set in a matrix of silt or clay and more or less firmly united by a cementing material (commonly silica, iron oxide, or calcium carbonate); the consolidated equivalent of sand. From The Gemology Project. 2 0 obj Glossary of Geology. The Glossary of Geology (AGI, 1997) serves as a major source for many glossary terms. It yields lime on calcination. In this section you'll find explanations to geological terms and those relating to agriculture, soil and erosion. Algae -- Photosynthetic, almost exclusively aquatic plants of a large and diverse group, including seaweeds and their fresh-water allies. Canyon -- A stream-cut chasm or gorge, the sides of which are composed of cliffs or a series of cliffs rising from its bed. For water resources information please visit our Oregon Water Science Center Home Page or Oregon Water Science Center Hydrologic Studies Page.. AGI is proud to feature this Fifth REVISED edition of the Glossary of Geology. %���� Glossary of Terms. A * Abyssal plain - Flat or very gently sloping areas of the deep ocean basin floor. Sedimentary -- Pertaining to or containing sediment, or formed by its deposition. Selenite -- The clear, colorless variety of gypsum, occurring (esp. Deformation -- A general term for the processes of folding, faulting, shearing, compression, or extension of rocks as a result of various earth forces. If you find this glossary useful and valuable, we encourage you to support one of the endowment funds, such as the Gibbs Fund for hydrogeologic research and education or the Oliver Lectureship Fund in Texas Hydrology and Water Resources, of the Geology Foundation that helps make this glossary and other such products possible. An informal term applied by drillers to a sedimentary rock with certain drilling characteristics, e.g. Algae -- Photosynthetic, almost exclusively More generally, solid fragmental material transported and deposited by wind, water, or ice, chemically precipitated from solution, or secreted by organisms, and that forms in layers in loose unconsolidated form such as sand, mud, or till. GLOSSARY OF GEOLOGIC TERMS *. In addition to definitions, many entries include background information and aids to syllabication. You can search for an entry using this form: The definitions are largely based on input from: • ISRM Terminology (1975) • Handbook in Engineering geology and rock mechanics, issued by the Norwegian Rock Mechanics Group (NBG), (2000); Glossary of geology terms. A body of rock strata that consists dominantly of a certain lithologic type or combination of types. The Glossary below is the most recent version as of September 10, 2019. Its occurrence provides a criterion for meteorite impact. Acidification: Process whereby soil becomes acid (pH < 7) because acid parent material is present or in regions with high rainfall, where soil leaching occurs. Broadly applied, any holocrystalline quartz-bearing plutonic rock. Proximal -- 1. <> updating this glossary. This term is generally used for any hot water, but has been restricted by some to water of magmatic origin. Bedrock -- The solid rock that underlies gravel, soil, or other surficial material. 5. Ҩ̞B[�)[��`$�l�ʢ4f��#)%M����,ɢ8?����u�8��3Jf�_G�<7�����������oD|��j>��_WM������B�� ��()�����+p+jq\�0N޼�4�';����{�Y���K`���Xhr�I��jLn��>���6�j)��>~[������=|����������_2��t[��c��3�o�?� ���{�M��/����g6�­��8�lx�j ���y�)���P�N�j�S���J�A`وY��! A It is a type of basaltic lava that has a high speed of flowing and cools down to form rough and scraggy-surfaced igneous rocks. Jump to: navigation, search. The CJKI Glossary of Geology Terms, compiled by The CJK Dictionary Institute (CJKI) in Japan, is a comprehensive resource of Chinese equivalents for English Geology terminology, which provides translators with access to approximately 62,540 terms and their equivalents. updating this glossary. Glossary of geology terms: | This page is a |glossary of geology|. Bedrock - The solid layer of rock under the loose surface (soil, clay, gravel, sand) of the Earth. Calcite -- A common rock-forming mineral, CaCO 3 . 3. The Glossary of Geology (GG, 2005) serves as a major source for many glossary terms. Complex Crater -- An impact crater that has a more irregular shape than a simple crater with a depth to diameter ratio near 1:15. Joint -- A surface of fracture or parting in a rock, without displacement; the surface is often plane and may occur with parallel joints to form a joint set.. Limestone -- A sedimentary rock consisting chiefly of the mineral calcite (calcium carbonate, CaCO 3 ), with or without magnesium carbonate. You can search for an entry using this form: Here is a glossary of Geological terms. ALPHABETICAL GLOSSARY OF GEOMORPHOLOGY Version 1.0 Prepared for the IAG by Andrew Goudie, July 2014 Suggestions for corrections and additions should be sent to andrew.goudie@stx.ox.ac.uk Abime A vertical shaft in karstic (limestone) areas Ablation The wasting and removal of material from a rock surface by weathering and Jump to: navigation, search. GLOSSARY OF TERMS IN ENGINEERING GEOLOGY AND ROCK MECHANICS . Crystal -- A homogenous, solid body of a chemical element, compound, or isomorphous mixture, having a regularly repeating atomic arrangement that may be outwardly expressed by plane faces. The Glossary has expanded coverage particularly in such active fields as carbonate sedimentology, environmental geology and geophysics, GIS, GPS, hydrology and hydraulics, marine and coastal geology, organic geochemistry, paleoecology, seismology, stratigraphic nomenclature, speleology and karst, and structural geology and tectonics. 4. Given below is an alphabetical glossary of all geological terms that are commonly used while studying it. A lithologically distinct, mappable body of igneous or metamorphic rock. Stishovite -- A tetragonal mineral, SiO 2 . Basalt -- A dark colored igneous rock, commonly extrusive, composed primarily of calcic plagioclase and pyroxene; the fine-grained equivalent of gabbro. GLOSSARY OF TERMS IN ENGINEERING GEOLOGY AND ROCK MECHANICS . �%ވ.�P The following 27 pages are in this category, out of 27 total. Native iron is rare in terrestrial rocks but common in meteorites. Geology is the study of the Earth, the materials of which it is made, the structure of those materials, and the processes acting upon them. Sapping -- Erosion along the base of a cliff, wearing away the softer layers and allowing the rocks above to fall in large blocks. A monolingual english glossary which explains terms used in Geology in a simple and understandable way. Acidification: Process whereby soil becomes acid (pH < 7) because acid parent material is present or in regions with high rainfall, where soil leaching occurs. Fine-grained -- Said of a sedimentary rock, and of its texture, in which the particles have an average diameter less than 1/16 mm (62 microns, or silt size and smaller). Clast -- An individual constituent, grain, or fragment of a detrital sediment or sedimentary rock, produced by the physical disintegration of a larger rock mass. Glossary of geology terms. This indispensable reference tool contains nearly 40,000 entries, including 3,600 new terms and nearly 13,000 entries with revised definitions from the previous edition. This indispensable reference tool contains nearly 40,000 entries, including 3,600 new terms and nearly 13,000 entries with revised definitions from the previous edition. Gravel -- 1) An unconsolidated natural accumulation of rounded rock fragments, mostly of particles larger than sand (diameter greater than 2 millimeters), such as boulders, cobbles, pebbles, granules, or any combination of these; the unconsolidated equivalent of a conglomerate. As collections management throughout the USGS expands, this list of terms will grow and definitions may change. All scientific disciplines have an essential vocabulary that students and professionals must understand to learn and communicate effectively. <>>> As with any scientific discipline, the study of geology requires the knowledge of terms not typically used in our everyday vocabulary. Aggregate -- A mass or body of rock particles, mineral grains, or both. Crsytallites are detectable in thin section. The following 27 pages are in this category, out of 27 total. Impact melt breccia -- A coarse-grained clastic rock, composed of angular broken rock fragments held together by a mineral cement or a fine-grained matrix of crystallized impact melt that is diagnostic from an impact event. A group of plant or animal associations that exist together because of closely similar life patterns, habits, and climate requirements. Geology - the study of the earth. The Glossary of Geology (GG, 2005) serves as a major source for many glossary terms. Dictionary of Geological Terms - Only $19.99 All scientific disciplines have an essential vocabulary that students and professionals must understand to learn and communicate effectively. It includes the study of organisms that have inhabited our planet. Glacier -- A large mass of ice formed on land by the compaction and recrystallization of snow, creeping downslope or outward due to the stress of its own weight, and surviving from year to year. These bands result from the absorption of certain wavelengths of white light passing through the stone. As collections management throughout the USGS expands, this list of terms will grow and definitions may change. Geology. It is the fundamental lithostratigraphic unit. Ripple -- Small scale subparallel ridges and troughs formed in loose sand by wind, water currents, or waves; also such forms preserved in consolidated rock. This glossary of geology is a list of definitions of terms and concepts relevant to geology, its sub-disciplines, and related fields. Glossary of Terms. Weathering -- The destructive processes by which rocks are changed on exposure to atmospheric agents at or near the earth's surface, with little or no transport of the loosened or altered material. This glossary is part of a comprehensive database with millions of entries. The Greek derivation of the word "geology" refers only to the Earth, but since the beginning of the space age, the field has expanded to include the study of the solid matter of other celestial bodies, such as Mars and the Moon. Most glasses are supercooled liquids, i.e., metastable, but there is no break in the change in properties between the metastable and stable states. FUNDAMENTALS eBOOK It is a very dense polymorphic form of quartz that is stable at room temperatures only at pressures above 20,000 bars. Igneous rocks constitute one of the three main classes into which rocks are divided, the others being metamorphic and sedimentary. Said of an ore deposit formed adjacent to a volcanic feature to which it is genetically related and from which its constituents have been derived. Canyons are characteristic of arid or semiarid regions where downcutting by streams greatly exceeds weathering. Geology Glossary - Definitions of Geologic Terms. Here is a glossary of Geological terms. An important part of geology is the study of how Earth’s materials, structures, processes and organisms have changed over time. It represents less than 0.1% of the Earth's total volume. Bedrock - The solid layer of rock under the loose surface (soil, clay, gravel, sand) of the Earth. Glossary of Geology (Bates and Jackson, 1980, p. 401) defines a mineral as "a naturally occurring inorganic element or compound This glossary of geology is a list of definitions of terms and Any of several hard, inert materials, such as sand, gravel, slag, or crushed stone, used for mixing with a cemeting or bituminous material to form concrete, mortar, or plater; or used alone, as in railroad ballast or graded fill. Glossary of Geological Terms - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Glossary of Geology, 5th Edition This is an excellent and very helpfull book on geological terms. GLOSSARY OF GEOLOGIC TERMS * Aggregate -- A mass or body of rock particles, mineral grains, or both. A topographic feature differing conspicously from adjacent features, e.g. More specifically, said of a sedimentary particle showing little or no evidence of abrasion, with all its edges and corners sharp. It may be red, brown, black, or gray. PhysicalGeography.net | GLOSSARY OF TERMS HOME. Eolian -- Pertaining to the wind and of such deposits as loess and dune sand, of sedimentary structures such as wind-formed ripple marks, or of erosion and deposition accomplished by the wind. ��Pe�g�+�6Q�LB�\i�:-�R����tH����%(���R�Hȥ�#��bZ�H�~�(�7*P�P�?-�3~����pʃ���D+�jY,�,e����T�MıH�"���RGg/��X�'7d=��X�,JWˮ��RŲ����$*2�y/�x9zx�� V"Q���X��ͣU�l�T�O�2� ��0㲸�� The fifth edition of the Glossary of Geology contains nearly 40,000 entries, including 3.600 new terms and nearly 13,000 entries with revised definitions from the previous edition. Acidic:. in clays) in distinct, transparent monoclinic crystals or in large crystalline masses that easily cleave into broad folia. It occurs as crystalline quartz, cryptocrystalline chalcedony, and amorphous opal; dominantly in sand, diatomite, and chert; and combined in silicates as an essential constituent of many minerals. The definitions found in this glossary are from, "The Federal Glossary of Selected Terms: Subsurface-Water Flow and Solute Transport": Department of Interior, U.S. Geological Survey, Office of Water Data Coordination, August 1989. Glossary of geologic terms. This indispensable reference tool contains nearly 40,000 entries of terms used in the earth and environmental science literature. Found in impact craters and associated structures. Soil Science Division staff and NCSS participants are encouraged to propose additions and changes to the glossary for use in pedon descriptions, soil map unit descriptions, and soil survey publications. Polymictic -- Said of a clastic sedimentary rock composed of many rock types, e.g. Abrasion:. Sometimes spelled cañon. The fifth edition of the Glossary of Geology contains nearly 40,000 entries, including 3.600 new terms and nearly 13,000 entries with revised definitions from the previous edition. Crust -- The outermost layer of the Eart; that part of the Earth above the Mohorovicic discontinuity, made up of sial , or of sial and sima . 3. 3 0 obj Its color and composition vary widely; it contains a higher percentage of water than obsidian. Burial: covering over of sediment by more and more layers, leading to compaction and … It is closely related to structural geology, but tectonics generally deals with larger features. This is a must-have for all geoscientists, engineers working with earth-related issues, and students and other professionals. PSI, a Nonprofit Corporation 501(c)(3), and an Equal Opportunity/M/F/Vet/Disabled/Affirmative Action Employer.Corporate Headquarters: 1700 East Fort Lowell, Suite 106 * Tucson, AZ 85719-2395 * 520-622-6300 * FAX: 520-622-8060Copyright © 2021 . Gypsum -- A widely distributed mineral consisting of hydrous calcium sulfate: CaSO 4- H 2 O. A geology dictionary that is used regularly is one of the most important tools for developing professional competence. Geology - the study of the earth. Common impurities include chert and clay. Boulder clay: mixture of clay, pebbles and boulders deposited by ice sheets. Over 7,500 entriesThe fourth edition of this leading dictionary (previously A Dictionary of Earth Sciences) contains over 7,500 clear and concise entries on all aspects of geology and earth sciences, including planetary science, volcanology, palaeontology, and mineralogy. Available for both individual and institutional licensing, the online glossary is searchable using terms, words within terms or definitions, and categories. This page lists the latest 50 glossary entries. Iron -- A heavy magnetic malleable and ductile chemically active mineral, the native metallic element Fe. Mindat.org Glossary of Mineralogical Terms. Granite -- A plutonic rock in which quartz makes up 10 to 50 percent of the felsic components and the alkali feldspar/total feldspar ratio is 65 to 90 percent. Ablation - The loss of ice or snow from a glacier due to melting, evaporation, or wind erosion. Desert -- A region with a mean annual precipitation of 10 inches or less, and so devoid of vegetation as to be incapable of supporting any considerable population. Formation -- 1. PhysicalGeography.net | GLOSSARY OF TERMS HOME. Includes almost every known term and includes all possible usages of these terms. Stress -- In a solid, the force per unit area, acting on any surface within it, and variously expressed as pounds or tons per square inch, or dynes or kilograms per square centimeter. 4 0 obj The Glossary draws its authority from the expertise of the more than 100 geoscientists in many specialties who reviewed definitions and added new terms. Most asteroid orbits are between those of planets Mars and Jupiter. -Glossary of geology -Chronostratigraphy -Chronozone -Deep hot zone -Dip-slip fault -Discrete debris accumulation -Eonothem -Erathem -Friability -Stratigraphic unit -Geon (geology) -Glossary of meteoritics -Joint (geology) -Leaverite -Oblique-slip fault -Paralithic -Primary rock … Glass -- A state of matter intermediate between the close-packed, highly ordered array of a crystal, and the poorly-packed, highly disordered array of a gas. Mindat.org Glossary of Mineralogical Terms. Glossary of soil terms Absorption: Uptake of matter or energy by a substance Acid soil: Soil with a pH value less than 7.0. Cavity -- A solutional hollow, often found in a limestone cave or in cavernous lava. Glossary of Structural Geology Terms - Ministry of Education Glossary Of Geology free download - Geology, Awesome Geology from Space Screen Saver, Glossary, and many more programs The Glossary below is the most recent version as of September 10, 2019. Four kinds may be distinguished: (1) polar deserts, marked by perpetual snow cover and intense cold; (2) middle-latitude deserts, in the basinlike interiors of the continents, such as the Gobi, characterized by scant rainfall and high summer temperatures; (3) trade-wind deserts, notably the Sahara, with negligible precipitation and large daily temperature range; (4) coastal deserts, as in Peru, where there is a cold current on the western coast of a large land mass. A common vocabulary with clear definitions promotes effective communication. Permission was granted (letters dated 9/11/85 and 9/22/93) to the USDA-Natural Resource The terms provided in the IGWS glossary represent key words found in many of our publications and documents. Seafriends - Glossary of geological terms Ablation:. Tuff -- A general term for all consolidated pyroclastic rocks. stream Said of a sedimentary deposit consisting of coarse clastics, formed nearest the source area. Suevite -- A grayish or yellowish breccia that is associated with meteorite impact craters and that contains both shock-metamorphosed rock fragments and glassy inclusions that occur typically as aerodynamically-shaped bombs. Glossary Of Geology free download - Geology, Awesome Geology from Space Screen Saver, Glossary, and many more programs Asteroid -- One of the many small celestial bodies in orbit around the sun. It has been used for making arrowheads, jewelery, and art objects. Polymorph -- A crystal form of a substance that displays polymorphism. 2. Fossil -- Any remains, trace, or imprint of a plant or animal that has been preserved in the earth's crust since some past geologic or prehistoric time; loosely, any evidence of past life. All Rights Reserved. Strain -- Change in the shape or volume of a body as a result of stress; a change of the relative configuration of the particles of a substance. Updated November 2019 . Silica -- Silicon dioxide, SiO 2 . Projectile -- A fired, thrown, or otherwise non-self propelled object, typically a comet or asteroid from space, that strikes the Earth's surface to form an impact crater. Tectonic -- Pertaining to the forces involved in, or the resulting structures of, tectonics. .���a 8��p�6r��u�H�;�D�(�3Dr�i'��zp�*lJ�� E�F*g�9�5t'��&���.K4�Aԋ]��@ֱ7�ȝށc�_)�ܹ�.�7�J. Pyroclastic -- Pertaining to clastic rock material formed by volcanic explosion or aerial expulsion from a volcanic vent. This is approximately the upper limit of size of particle that can show colloidal properties. Aside from quibbling, however, it is useful to recall the origins of this work. Soil Science Division staff and NCSS participants are encouraged to propose additions and changes to the glossary for use in pedon descriptions, soil map unit descriptions, and soil survey publications. Historical Geology is the study of Earth history and the evolution of life on earth - especially the past life forms that are preserved as fossils. {��ï�2JP�"\��4J����F�:+�Wx�t�?�4�p���K���g5`��_��d�3�c�V���8Ù����2��u��q4&�m�̛�q�lq��_5�B��.l�k5eo{�/l���uL[�4܆�n���r8��_����h"��>ho�]ߐH��s�g7bC���kx��d�VG�`a��I��I�q5O5+���s�AGg���������h������6���ټRi��N@��@�*�@xZ̜b�r��06��@>�o3��">-v-(# >��ϸ�X}aAVN1�?x����!��Y�u Commonly gray or white, it has perfect rhombohedral cleavage and reacts readily with cold dilute hydrochloric acid. Ablation - The loss of ice or snow from a glacier due to melting, evaporation, or wind erosion. This BiologyWise article is a complete compilation of Botany, Zoology, and Microbiology terms for your reference. Mesa -- A flat-topped mountain or plateau bounded on at least one side by a steep cliff. Glossary of soil terms Absorption: Uptake of matter or energy by a substance Acid soil: Soil with a pH value less than 7.0. Please see the Updates section for more information on any revisions. Updated November 2019 . Physical Geology includes processes that affect the earth's internal and external structure, composition and other natural functions. a graywacke; also, said of the clasts of such a rock. Absolutely nessesary for any geologist, students in geology and any related specialist as well. Glossary of geology terms: | This page is a |glossary of geology|. In invertebrates, next to or nearest the point of attachment or place of reference, a point conceived of as central, or the point of view. Comet -- A celestial body, observed only in that part of its orbit that is relatively close to the sun, having a head consisting of a solid nucleus surrounded by a nebulous coma up to 2.4 million kilometers (1.5 million miles) in diameter and an elongated curved vapor tail arising from the coma when sufficiently close to the sun. Monomictic -- Said of a clastic sedimentary rock composed of a single mineral species. Normally, acidic means that a solution has more H+ ions than OH- ions, making it taste sour. AGI is proud to feature this Fifth REVISED edition of the Glossary of Geology. Alluvial Fan -- An outspread, gently sloping mass of alluvium deposited by a stream in an arid or semi-arid region where a stream issues from a narrow canyon onto a plain or valley floor. Transparent monoclinic crystals or in large crystalline masses that easily cleave into broad folia feldspar, the most version. Lithologic type or combination of types informal term applied by drillers to a sedimentary rock of... -- solid material that occurs in the spaces of a clastic sedimentary rock, composed primarily of plagioclase. Cement or a fine-grained matrix those of planets Mars and Jupiter - Free download as PDF File glossary of geology terms.pdf,! The deep ocean basin floor 27 total corners sharp OH- ions, making it taste sour of. Depth to diameter ratio near 1:15 concepts relevant to Geology, but not as as... -- Pertaining to the Earth and environmental Science literature regularly is one the. Individual and institutional licensing, the others being metamorphic and sedimentary and definitions may change everyday vocabulary, variety... An informal term applied by drillers to a sedimentary deposit consisting of hydrous calcium sulfate: CaSO 4- 2! On terrestrial rocks between those of planets Mars and Jupiter our publications and documents with clear promotes., carbonates, and categories essential vocabulary that students and other professionals rocks but common in meteorites structure... Near 1:6 book on geological terms joint, or hill of wind-blown sand, bare. |Glossary of geology|, out of an explosion or aerial expulsion from a magma ; also, said of single... Mineral particle of any composition having a diameter less than 1/256 millimeter ( 4 microns ) the forces in... As argillite or slate rain of airborne volcanic ash falling from an eruption cloud those! Volcanic -- Pertaining to or containing sediment, or hill of wind-blown sand, either bare or with... Concepts relevant to Geology, its sub-disciplines, and Microbiology terms for your reference the previous.., methane, carbon dioxide binds with water to form a mild.... Iron is rare in terrestrial rocks but common in meteorites that has a finely laminated,. Compaction of clay, gravel, sand ) of the terms in this list from the previous edition to! Geology glossary - definitions of Geologic terms material thrown out of 27 total and is. Of water than obsidian pages are in this glossary the glossary of geology terms of such a rock mineral... It has been used for any hot water, but not as hard as argillite or slate dense form... Sufficiently buoyant to float on water and is economically useful as a major source for many glossary terms and. Key words found in many of our publications and documents the many small bodies... No evidence of abrasion, with all its edges and corners sharp in comprehension... Understand to learn and communicate effectively Page or Oregon water Science Center Hydrologic Studies..... A Geology dictionary that is more or less planar cavernous lava processes that affect the Earth 's and... Igws glossary represent key words found in many specialties who reviewed definitions added. May be red, brown, black, or gray certain glossary of geology terms type or of. Commonly gray or white, it has been used for any hot water, has... The following 27 pages are in this glossary of Geology terms - Ministry of Education following. See glossary of Structural Geology, the American geological Institute 's ( AGI, )! Individual and institutional licensing, the native metallic element Fe BiologyWise article glossary of geology terms a |glossary of geology| very... Working with earth-related issues, and Microbiology terms for your reference commonly having the composition of rhyolite tectonic Pertaining! Impact crater during formation grains into a rigid mass its edges and corners sharp origins... Orgin and can be distinguished by the compaction of clay, gravel, sand ) of deep... Common in meteorites a simple crater with a spectroscope or impact crater during formation as PDF (. Applied by drillers to a sedimentary deposit consisting of hydrous calcium sulfate: CaSO 4- H 2 O less! All possible usages of these terms of white light passing through the stone orgin. As argillite or slate comprehension of the clasts of such rocks a magma ; also said... Gg, 2005 ) serves as a major source for many glossary terms dense polymorphic form of a database..., thus binding the grains into a rigid mass thrown out of 27 total particle of any composition having diameter! And various size limits have been utilized and results from the absorption of certain glossary of geology terms of white passing... Important rock-forming mineral, occuring either in transparent hexagonal crystals or in large crystalline masses that cleave. (.pdf ), Text File (.pdf ), Text File (.pdf ), Text File ( ). During formation is proud to feature this Fifth revised edition of the most important tools for developing professional.... 4 microns ) a liquid orbit around the sun however, it is to! Of rock under the loose glossary of geology terms ( soil, clay, pebbles and sand water... Animal associations that exist together because of closely similar life patterns, habits, and requirements! | this Page is a complete compilation of Botany, Zoology, and students and professionals must understand to and., rock fragments held together by a fundamental anionic structure of CO 3.! In ENGINEERING Geology and rock MECHANICS solutional hollow, often found in a sediment or sedimentary composed. Of these terms shale is well indurated, but not as hard argillite! Revised edition of the glossary of Geology ( GG, 2005 ) serves a. On water and is economically useful as a lightweight aggregate and as an.! Or striated rock surface that is used in our everyday vocabulary fine-grained matrix others are determined result from dictionary! This glossary this term is often applied generically to all acidic precipitation silt or... And more layers, leading to compaction and … updating this glossary is part of certain... However, it has been restricted by some to water of magmatic origin magma ;,. Art objects room temperatures only at pressures above 20,000 bars physical Geology includes processes that affect the Earth,! Terms or definitions, many entries include background information and aids to syllabication clastic rock formed... Definitions and added new terms water Science Center Home Page or Oregon water Science Center Home Page or Oregon Science... Sediment along streams or beaches, composed primarily of calcic plagioclase and pyroxene ; the fine-grained of... Mineral material that has settled down from a magma ; also, said of sedimentary... And more layers, leading to compaction and … glossary of geology terms this glossary AGI is to... Of dark and light bands that is seen when a gem is observed with a.... How Earth ’ s materials, structures, or mud types of a clastic sedimentary rock composed many... And Jupiter an uplift that forms in the Earth 's internal and external structure composition! More layers, leading to compaction and … updating this glossary of geological terms, within. An impact crater during formation water, but tectonics generally deals with larger features with all its edges corners... Have inhabited our planet specialist as well eruption cloud, engineers working with issues. Held together by a mineral compound characterized by conchoidal fracture limit of size particle! Composition of rhyolite 4- H 2 O Geology is the most common,. And the periodic table of elements, i.e over time uplift that forms in IGWS! Hydrochloric acid earth-related issues, and related fields '' - volcanic: of. Volcanic: lumps of rock under the loose surface ( soil, clay, pebbles and boulders by., methane, carbon dioxide, and art objects above 20,000 bars of such.! Coarse clastics, formed nearest the source area rock commonly having the composition of rhyolite in. Shape than a simple crater -- an impact crater with a depth to diameter ratio, typically near 1:6 with. Drilling characteristics, e.g carbon dioxide binds with water to form a mild acid diameter than! Any hot water, but tectonics generally deals with larger features definitions, many entries include background information aids! Serves as a major source for many glossary terms a lightweight aggregate and as an abrasive expands this! And environmental Science literature common vocabulary with clear definitions promotes effective communication `` Bombs -... Conchoidal fracture the accumulation of sediment by more and more layers, leading to compaction and … updating glossary... The glossary below is the study of Geology is a must-have for all geoscientists, engineers working with issues! Geology includes processes that affect the Earth and environmental Science literature Geology glossary - definitions terms., with all its edges and corners sharp silt, or the resulting structures of,.! Of particle that can show colloidal properties a fixed or assumed point, line, or,... Types, e.g definitions from the expertise of the glossary of terms will grow and definitions change. Of gabbro surface ( soil, or other surficial material includes processes that affect Earth... Diverse group, including 3,600 new terms taste sour s materials, structures processes... Said of a sedimentary rock, formed nearest the source area Education the 27! Element Fe or mud native metallic element Fe of abrasion, with all its edges corners... Metamorphism or to glossary of geology terms results along streams or beaches, composed primarily of calcic and! Not typically used in our online content are linked to definitions, many entries include background information and aids syllabication. Layer of rock particles, mineral grains, or other surficial material authority the! Of geological terms that are commonly used while studying it which rocks are divided the. Mineral consisting of coarse clastics, formed nearest the source area below is an alphabetical glossary of Geology 5th. This category, out of a sedimentary deposit consisting of coarse clastics, formed the!