Diabasic Texture

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Ophitic texture | geology | Britannica

Other articles where Ophitic texture is discussed: diabase:the characteristic texture known as diabasic or ophitic. The larger pyroxene grains may completely enclose plagioclase; but as the quantity of the latter increases, pyroxene appears more interstitial.Diabase - Wikipedia,Diabase normally has a fine but visible texture of euhedral lath-shaped plagioclase crystals (62%) set in a finer matrix of clinopyroxene, typically augite (20–29%), with minor olivine (3% up to 12% in olivine diabase), magnetite (2%), and ilmenite (2%). Accessory and alteration minerals include hornblende, biotite, apatite, pyrrhotite, chalcopyrite, serpentine, chlorite, and calcite. The texture is termed diabasic and is typical of diabases. This diabasic texture is also termed interstitial. The fe…ALEX STREKEISEN-Ophitic Texture-,Ophitic Texture Ophitic texture, a variant the Poikilitic texture, is one where random plagioclase laths are enclosed by pyroxene or olivine. If plagioclase is larger and encloses the ferromagnesian minerals, then the texture is subophitic and the laths typically impinge on one another to form sharp angles. Note that the change from intergranular through subophitic to ophitic textures in,

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Textures of Basalts and Gabbros

Ophitic definition, a diabase in which elongate crystals of plagioclase are embedded in pyroxene. See more.Review of Shallow, Ore-related Granites: Textures,,01/12/1997· Further, crystallization textures evolve with increasing undercooling (e.g. a given mafic melt may crystallize yielding a gabbroic texture at low undercooling, a diabasic texture at intermediate undercooling and a basaltic texture at high undercooling). Much has been made in the petrological literature about the necessity of pre-existing nuclei (heterogeneous nucleation)diabasic texture - Translation from English into Arabic | PONS,diabasic texture GEOL. diabasic texture. بنية صخرية حبيبية بركانية. Would you like to add some words, phrases or translations? Just let us know. We look forward to hearing from you. Suggest a new entry powered by Free PONS Apps. Our free PONS Online Dictionary is also available for iOS, Android and Windows! PONS App Centre My personal vocabulary list . Online dictionary,

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Textures and Structures of Igneous Rocks Flashcards | Quizlet

Diabasic Texture characterized by lath-shaped plagioclase (the major mineral) with augite filling the spaces between the plagioclase. SynonymousDiabase | Definition of Diabase by Merriam-Webster,Diabase definition is - diorite. Recent Examples on the Web It’s made of diabase traprock, which contains iron that causes the cliffs to look lumpen and rusty in the wrong light, precise and resplendent in the right one. — Christian Wiman, Harper's magazine, "The Cancer Chair," 20 Jan. 2020 These example sentences are selected automatically from various online news sourcesDiabase | rock | Britannica,In diabase, poorly formed pyroxene crystals wrap around or mold against long, rectangular plagioclase crystals to give it the characteristic texture known as diabasic or ophitic. The larger pyroxene grains may completely enclose plagioclase; but as the quantity of the latter increases, pyroxene appears more interstitial.

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Martian Meteorite - Shergottite NWA 12965, Igneous rock,

NWA 12965 . NWA 12965. Found Sahara, 2018. Planetary Achondrite. Martian. Shergotitte. Specimen is a 9.89g full slice (only 2 full slices procduced, first sold, this is the only one will be available) "Igneous rock with sub-ophitic texture. Main minerals are strongly zoned pyroxene and maskelynite."EESC4701: Igneous and Metamorphic Petrology TEXTURES OF,,•ophitic = diabasic: hypidiomorphic granular with euhedral plagioclase enclosed within anhedral augite •subophitic: like ophitic, but augites only partly enclose the plagioclase •intergranular: euhedral plagioclase surrounded by ner grains of augite •trachytoidal: phaneritic elongate crystals are aligned parallel to sub-parallel Inequigranular textures •porphyritic: see above,texture - Translation from English into Arabic | PONS,Look up the English to Arabic translation of texture in the PONS online dictionary. Includes free vocabulary trainer, verb tables and pronunciation function.

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Definition of diablastic - Mindat.org

Definition of diablastic. Pertaining to a texture in metamorphic rock that consists of intricately intergrown and interpenetrating constituents, usually with rodlike shapes. Ref: AGI. Click here to see list of references, authorities, sources and geographical terms as used in this glossary. Prev: diabasic Next: diachronism Glossary Search . Mineral and/or Locality . Mindat.org is an outreach,Martian Meteorite - Shergottite NWA 12965, Igneous rock,,Petrography: (J. Gattacceca, CEREGE) Igneous rock with sub-ophitic texture. Typical grain size 800 µm. Main minerals are strongly zoned pyroxene and maskelynite. Pyroxene has lobate contacts with plagioclase. Opaque minerals are iron oxides and pyrrhotite to 200 µm.Diabase - Wikipedia,Diabase is the preferred name in North America, while dolerite is the preferred name in the rest of English-speaking world, where sometimes the name diabase is applied to altered dolerites and basalts. Some geologists prefer the name microgabbro to avoid this confusion. Petrography. Diabase normally has a fine but visible texture of euhedral lath-shaped plagioclase crystals (62%) set in a,

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Diabase - Igneous Rocks

Diabase is composed of plagioclase feldspar (mostly labradorite) and pyroxene ().The crystals that make up dolerite are usually visible to the naked eye, but sometimes porphyritic rocks of basaltic composition with pyroxene and especially plagioclase phenocrysts are also named that way. Ophitic texture (randomly oriented plagioclase laths enclosed by pyroxene grains) is a characteristic,Bulletin (Volume 192-193): Amazon.co.uk: New York State,,Buy Bulletin (Volume 192-193) by New York State Museum of History (ISBN: 9781235302831) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders.Martian Meteorite - Shergottite NWA 12965, Igneous rock,,MARTIAN METEORITE - Shergottite NWA 12965, Igneous rock with sub-ophitic texture - $675.00. NWA 12965 NWA 12965 Found Sahara, 2018 Planetary Achondrite Martian Shergotitte Specimen is a 3.55g slice, with shock vein, melt pockets "Igneous rock with sub-ophitic texture. Main minerals are strongly zoned pyroxene and maskelynite." Northwest Africa 12965 Basic information Name: Northwest Africa,

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Arc and backarc geochemical signatures of the proto,

(C) Lower massive flow with diabasic texture and columnar joints in Balangiga. (D) and (E) Massive lava flow and pillow basaltic andesites in Marabut. (F) Mudstones and siltstones intercalate with and conformably overlie the volcanic unit of the Samar Ophiolite.Martian Meteorite - Shergottite NWA 12965, Igneous rock,,MARTIAN METEORITE - Shergottite NWA 12965, Igneous rock with sub-ophitic texture - $675.00. NWA 12965 NWA 12965 Found Sahara, 2018 Planetary Achondrite Martian Shergotitte Specimen is a 3.55g slice, with shock vein, melt pockets "Igneous rock with sub-ophitic texture. Main minerals are strongly zoned pyroxene and maskelynite." Northwest Africa 12965 Basic information Name: Northwest Africa,Core Data from the Deep Sea Drilling Project (DSDP), NOAA,,Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP).National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]. These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 1989 and modified in 2000 by the U.S. Department of Commerce, National

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Diabase - Igneous Rocks

Diabase is composed of plagioclase feldspar (mostly labradorite) and pyroxene ().The crystals that make up dolerite are usually visible to the naked eye, but sometimes porphyritic rocks of basaltic composition with pyroxene and especially plagioclase phenocrysts are also named that way. Ophitic texture (randomly oriented plagioclase laths enclosed by pyroxene grains) is a characteristic,Basalt Textures from the Southeastern Lower Galilee, Israel,Textures where the pyroxene occurs in isolated areas wedged between plagioclase laths had been termed " diabasic texture " by Kemp (1900). The latter texture is renamed " sub-ophitic " by Krokstrom (p. 199) and redefined as one in which " the pyroxene is subordinate in amount and forms a filling in the small interstices between the feldspars " withCore Data from the Deep Sea Drilling Project (DSDP), NOAA,,Leg : 17 Top/Bottom Interval(mm): 1370/1400 Describer: Bass, M. Hole: 167 Top of Core Depth(m) : 1166.00 Rock Type: IGNEOUS Core: 94 Sample Midpoint(m) : 1168.89 Sect/Pc #: 2/ ROCK = DIABASE OR COARSE-GRAINED BASALT SOURCE IS IR,SEE P.483,HIGHLY ALTERED; Texture: INTERGRANULAR TO INTERSERTAL,DIABASIC, Texture: URALLY COMPLEX* Phenocrysts-

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what is porphyritic texture? | Yahoo Answers

04/01/2007· Texture refers to the attributes of the physical components of a rock. The components may be glass, minerals, or rock fragments. Texture refers to the size and shape of the components of a rock, and to their mutual relationships. Study of textures aids in the understanding of the conditions of cooling that include the following. Size: Fine-grained, medium-grained, coarse- grained, pegmatitic,Martian Meteorite - Shergottite NWA 12965, Igneous rock,,Petrography: (J. Gattacceca, CEREGE) Igneous rock with sub-ophitic texture. Typical grain size 800 µm. Main minerals are strongly zoned pyroxene and maskelynite. Pyroxene has lobate contacts with plagioclase. Opaque minerals are iron oxides and pyrrhotite to 200 µm.32. PETROCHEMISTRY AND GEOCHEMISTRY OF BASALTS IN,32. PETROCHEMISTRY AND GEOCHEMISTRY OF BASALTS IN THE SHIKOKU BASIN AND DAITO BASIN, PHILIPPINE SEA G. V. Nisterenko, Institute of Geochemistry, Academy of Sciences of the U.S.S.R., Moscow ABSTRACT Tholeiitic basalts cored during Deep Sea Drilling Project Leg 58 in the northern Philippine Sea vary in composition: in Hole 443, they correspond to mid-ocean-ridge basalts;

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PETROLOGIC, ELEMENTAL, ISOTOPIC AND MAGNETIC,

It has a diabasic texture with some small vesicles containing partial interior coatings of secondary calcite and barite. Major minerals are zoned calcic olivine (Fa39.6-79.7Ln1.7-14.8, FeO/MnO,Deep Sea Drilling Project Initial Reports Volume 30,diabasic texture with an average grain size of ap-proximately 0.3 mm. The plagioclase has a maximum length of 0.8 mm, while the pyroxene and opaque minerals (magnetite plus ilmenite?) have maximum diameters of approximately 0.4 mm. Diabase Zone (2.1-19.7 m) The bulk of the diabase zone has a uniform diabasicDiablastic | Article about diablastic by The Free Dictionary,Pertaining to a texture in metamorphic rock that consists of intergrown and interpenetrating rod-shaped components. Want to thank TFD for its existence? Tell a friend about us , add a link to this page, or visit the webmaster's page for free fun content .

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Commonly used synonymously with diabasic texture Pegmatite,

Commonly used synonymously with diabasic texture Pegmatite o originally defined from GEO 212 at Grand Valley State UniversityTranslate textures in Arabic with contextual examples,Contextual translation of "textures" into Arabic. Human translations with examples: أنسجة, الأشياء, نسيج مصمت, نسيج مشوه, هناك,Diabase | Geology Wiki | FANDOM powered by Wikia,Diabase / ˈ d aɪ . / or dolerite or microgabbro is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite (dark mafic glass). Contents[show] Petrography Diabase normally has a fine, but visible texture of,

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Diabase Explained

The texture is termed diabasic and is typical of diabases. This diabasic texture is also termed interstitial. The feldspar is high in anorthite (as opposed to albite), the calcium endmember of the plagioclase anorthite-albite solid solution series, most commonly labradorite. LocationsDiabase - chemeurope.com,The texture is termed diabasic and is typical of diabases. This diabasic texture is also termed interstitial. The feldspar is high in anorthite (as opposed to albite), the calcium end member of the plagioclase Anorthite-Albite solid solution series, most commonly labradorite.Diabasic texture là gì, Nghĩa của từ Diabasic texture | Từ,,Diabasic texture. Hóa học & vật liệu kiến trúc điaba. Thuộc thể loại. Hóa học & vật liệu, August 11,2015,

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Diabase - LinkedIn SlideShare

01/12/2012· The texture is termed diabasic and is typical of diabases. This diabasic texture is alsotermed interstitial.[4] The feldspar is high in anorthite (as opposed to albite), the calciumendmember of the plagioclase anorthite-albite solid solution series, most commonly labradorite.Diabase/dolerite 3.Moon Rocks through a Microscope - USF,The most recent mare impact occurred approx. 3.0 Ga; the oldest, around 3.8 Ga. Lava erupted in the crater basins and filled them, and because of the vacuum of space, cooling proceeded relatively slowly, permitting more-or-less diabasic textures to develop.Core Data from the Deep Sea Drilling Project (DSDP), NOAA,,Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP).National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]. These Web pages are from the Core Data from the Deep Sea Drilling Project Legs 1-96 CD-ROM produced in 1989 and modified in 2000 by the U.S. Department of Commerce, National

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