Poikilitic

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August undefined, 2024

WebMar 8, 2024 · The poikilitic gabbro groundmass is composed of coarse-grained (ca. 3 mm) reversely-zoned subhedral plagioclase (An 71−68 core to An 81−79 rim) (Figures 2B, 7A) and anhedral olivine (Fo 84−83). WebFeb 24, 2024 · Northwest Africa (NWA) 6342 is an intermediate, poikilitic shergottite, found in Algeria in 2010. It is comprised of two distinct petrographic areas; poikilitic domains with rounded Mg-rich olivine chadacrysts enclosed by large low-Ca pyroxene oikocrysts, and a nonpoikilitic domain mainly comprised of subhedral olivine and …

Poikilitic vs Poikiloblastic - What

WebVerb ()(transitive, and, intransitive) To move gently back and forth. * , chapter=12 , title= The Mirror and the Lamp, passage=To Edward […] he was terrible, nerve-inflaming, poisonously asphyxiating.He sat rocking himself in the late Mr. Churchill's swing chair, smoking and twaddling.}}; To cause to shake or sway violently. * (John Dryden) A rising earthquake … Webpoikilitic: [adjective] of, relating to, or consisting of a structural pattern in igneous rocks in which a crystal of one mineral encloses smaller unoriented grains of another mineral so … hearts adult coloring pages

Poikilitic, Ophitic and Subophitic Textures Science Drill

WebJul 29, 2016 · Poikilitic and granular textured harzburgites are intimately intermingled, in some cases on a centimetre scale in the same rock ( Fig. 4 g). Normally zoned … WebFeb 28, 2014 · Wehrlite with poikilitic texture similar to that of samples LW8-49 and LW9-23 ( Figure 2h) can be formed by precipitation clinopyroxene from the reacted melt that stagnates in the olivine matrix ... Webpoikilitic Applied to the texture produced when several orientated or unorientated crystals are enclosed within a larger crystal in an igneous rock. The larger crystals have more … hearts across the heartland

Porphyritic vs Poikilitic - What

WebPoikilitic definition: relating to the presence of crystals within the structure or texture of a rock , or... Meaning, pronunciation, translations and examples WebJan 24, 2024 · The poikilitic harzburgites are interlayered with cumulate pyroxenites in which orthopyroxene grains show a variety of zoning patterns: Cr-rich cores similar to those in the oikocrysts; sharply ... heart safe cough medicineWebJan 24, 2024 · Poikilitic crystals in orthocumulate are conventionally thought to crystallize from the trapped liquid within a crystal mush, whereas unzoned oikocrysts in heteradcumulate, a rock composed entirely of oikocrysts and chadacrysts with little or no trapped liquid, are formed by growth of rare crystal nuclei in the interstitial liquid that is … heartsafe defibrillator

"WebDec 1, 2024 · Poikilitic textures are comprised of pyroxene oikocrysts that partly or completely enclose multiple olivine and spinel chadacrysts (); except in the case of NWA 11065, where some pyroxene oikocrysts are devoid — or nearly devoid — of mineral inclusions.In all samples, pyroxene oikocrysts are ovoid and range in maximum length … " - Poikilitic

Poikilitic

WebPoikilitic definition, (of igneous rocks) having small crystals of one mineral scattered irregularly in larger crystals of another mineral. See more. WebPoikilitic texture. Poikilitic texture refers to crystals, typically phenocrysts, in an igneous rock which contain small grains of other minerals. In igneous rocks Poikilitic texture is …

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WebPoikiloblastic definition, (of metamorphic rocks) having small grains of one mineral embedded in metacrysts of another mineral. See more. WebJun 6, 2024 · poikilitic. poikilitic ( comparative more poikilitic, superlative most poikilitic ) ( geology) Describing the texture of an igneous rock that has small crystals of one …

WebPoikilitic Texture Poikilitic texture refers to crystals, typically phenocrysts, in an igneous rock which contain small grains of other minerals. In igneous rocks poikilitic texture is … WebAug 23, 2014 · The most likely site where such reactions can take place is the asthenosphere–lithosphere boundary. In this context, poikilitic xenoliths may provide …

WebThe poikilitic lithology is defined by equant, rounded olivine and chromite chadacrysts contained within, and completely surrounded by mm-size pigeonite oikocrysts with thick, irregular rims of augite (up to 9 mm; Fig. 1). The olivines (150–600 μm across) are dispersed within the oikocrysts and are not in contact with each other. WebPoikilitic is a related term of poikiloblastic. In geology lang=en terms the difference between poikilitic and poikiloblastic is that poikilitic is (geology) describing the texture of an …

WebPoikilitic eudialyte outcrops in a strongly peralkaline phonolithic cumulo-dome in Jabal Al Hasawinah, Libya. Textural relationships reveal that the eudialyte has formed at a very late stage of the rock petrogenesis. Electron microprobe analyses confirm its volatile (hydrous) nature and low REE content.

WebDefine poikilitic. poikilitic synonyms, poikilitic pronunciation, poikilitic translation, English dictionary definition of poikilitic. adj geology relating to the presence of crystals within … mousecomputer co.ltd. h97m-s01WebDownload scientific diagram Poikilitic and contamination textures in carbonatites (a-c falsecolor BSE images, SB 50 μm; d-f BSE images, SB 0.5 mm). a Dolomite oikocryst containing inclusions of ... heart safe motherhood pennhttp://www.alexstrekeisen.it/english/pluto/poikilitic.php hearts adult coloringWebJul 1, 2024 · Poikilitic shergottites make up >20% of the current martian meteorite collection, with a total of 27 samples. These meteorites are intrusive gabbroic to lherzolitic rocks and represent igneous ... mousecomputer co.ltdWebIn analogy to lunar poikilitic rocks and lithic fragments, poikilitic lithic fragments in LL‐group chondrites, i.e., meteorites which are highly brecciated due to repeated … mouse computer chipWebJul 5, 2024 · Poikilitic orthopyroxene grains in the basal parts of both N-II and G-I suggest entrainment and partial resorption of plagioclase grains from the semi-crystalline resident … hearts adrift 1996WebOphitic 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 ... heart safe pain medication