Poikilitic

Author: cwok

August undefined, 2024

WebOther articles where poikilitic texture is discussed: igneous rock: Important textural types: Poikilitic texture describes the occurrence of one mineral that is irregularly scattered as … http://www.alexstrekeisen.it/english/pluto/poikilitic.php

Textures in a poikilitic olivine gabbro cumulate: Evidence for ...

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 ... Poikilitic texture refers to igneous rocks where large later-formed less perfect crystals ('oikocrysts') surround smaller early-formed idiomorphic crystals ('chadacrysts') of other minerals. A poikilitic texture is most easily observed in petrographic thin sections. In some rocks there seems to be little … See more A variety of poikilitic texture, known as ophitic texture, is where laths of plagioclase are enclosed in pyroxene, olivine or other minerals. It is very characteristic of many diabases, in which large crystals of See more • List of rock textures • Poikiloblast See more patil university

Poikilitic - definition of poikilitic by The Free Dictionary

WebJul 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 … WebPoikiloblastic definition, (of metamorphic rocks) having small grains of one mineral embedded in metacrysts of another mineral. See more. WebPoikilitic definition: relating to the presence of crystals within the structure or texture of a rock , or... Meaning, pronunciation, translations and examples patimalla

SOURCE AND PARENTAL MELTS OF A POIKILITIC …

Poikilitic definition and meaning Collins English Dictionary

WebDefinition of poikilitic in the Definitions.net dictionary. Meaning of poikilitic. What does poikilitic mean? Information and translations of poikilitic in the most comprehensive … WebJan 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 … patima bronzeWebIn 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 … カシオ電波時計 jjy40/60

"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 … " - Poikilitic

Poikilitic

Partial Melting of Lower Oceanic Crust Gabbro: Constraints From ...

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 … 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 …

Did you know?

WebDownload 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 ... WebOphitic 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 ...

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 … 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 …

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). 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.

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 …

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 … patima longlavilleWebIn geology lang=en terms the difference between porphyritic and poikilitic. is that porphyritic is (geology) containing large crystals in a fine mass of material while poikilitic is … カシオ電波時計 iq 1050njWebAug 26, 2024 · Poicilitic or poikilitic texture is one of the igneous rock textures formed when a larger mineral crystal completely encloses smaller crystals of different minerals . Think … pati margelloWebNorthwest 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 vesicular recrystallized plagioclase. カシオ電波時計壁掛けデジタルWebpoikilitic texture, and equigranular versus porphyritic textures in terms of material properties and physical conditions through the number density of crystals. In Appendices A-C, the detailed derivations of the equa- tions for moments of crystal size distribution function and of scaling relation for number density are presented. patil university puneWebIn geology lang=en terms the difference between porphyritic and poikilitic. is that porphyritic is (geology) containing large crystals in a fine mass of material while poikilitic is (geology) describing the texture of an igneous rock that has small crystals of one mineral scattered among larger crystals of another. カシオ電波時計合わせ方 patima france