Relevant bibliographies by topics / Dendritic olivine

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  2. Dissertations / Theses
  3. Reports

Academic literature on the topic 'Dendritic olivine'

Author: Grafiati
Published: 23 September 2022
Last updated: 31 July 2025

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Journal articles on the topic "Dendritic olivine"

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Lee, Cin-Ty, Chenguang Sun, Eytan Sharton-Bierig, et al. "Widespread phosphorous excess in olivine, rapid crystal growth, and implications for magma dynamics." Volcanica 5, no. 2 (2022): 433–50. http://dx.doi.org/10.30909/vol.05.02.433450.

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Trace element zoning is often used to unravel the crystallization history of phenocrysts in magmatic systems, but interpretation requires quantifying the relative importance of equilibrium versus disequilibrium. Published partition coefficients for phosphorous (P) in olivine vary by more than a factor of ten. After considering kinetic effects, a new equilibrium partition coefficient was extrapolated from a re-examination of natural and experimental systems, indicating that P partition coefficients in olivine are significantly over-estimated. These new partitioning constraints allow us to estab
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Welsch, Benoit, Julia Hammer, and Eric Hellebrand. "Phosphorus zoning reveals dendritic architecture of olivine." Geology 42, no. 10 (2014): 867–70. http://dx.doi.org/10.1130/g35691.1.

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Barnes, Stephen, Thorvaldur Thordarson, Robin E. T. Hill, Caroline S. Perring, Sarah E. Dowling, and Belinda Godel. "Moinui Flow on Mauna Loa: transport and deposition of an olivine crystal cargo in a compound basaltic lava flow." Volcanica 7, no. 1 (2024): 247–72. http://dx.doi.org/10.30909/vol.07.01.247272.

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The Moinui lava flow on the west flank of Mauna Loa, Hawai`i, is a 32-km-long pāhoehoe basalt flow, between 760 and 1500 years old, characterised by the presence of two generations of olivine: 2–5-mm-sized glomerocrystic clusters of equant polyhedral grains, and dendritic plates. Both generations are distributed throughout the flow field from the vent at 3400 m above sea level to the ocean. We mapped roadcut outcrops in detail to investigate the internal geometry and emplacement mechanisms of the flow, and sampled these outcrops to collect quantitative textural data on the two olivine populati
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Wieser, Penny E., Zoja Vukmanovic, Rüdiger Kilian, et al. "To sink, swim, twin, or nucleate: A critical appraisal of crystal aggregation processes." Geology 47, no. 10 (2019): 948–52. http://dx.doi.org/10.1130/g46660.1.

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Abstract Crystal aggregates in igneous rocks have been variously ascribed to growth processes (e.g., twinning, heterogeneous nucleation, epitaxial growth, dendritic growth), or dynamical processes (e.g., synneusis, accumulation during settling). We tested these hypotheses by quantifying the relative orientation of adjacent crystals using electron backscatter diffraction. Both olivine aggregates from Kīlauea volcano (Hawaiʻi, USA) and chromite aggregates from the Bushveld Complex (South Africa) show diverse attachment geometries inconsistent with growth processes. Near-random attachments in chr
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Sönmez, Taki, and Namık Aysal. "Crystal Morphology of Antarctic Micrometeorites Based on Melting–Cooling Processes During Atmospheric Entry." Crystals 15, no. 2 (2025): 179. https://doi.org/10.3390/cryst15020179.

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Micrometeorites (MMs), which are cosmic dust grains ranging from 10 microns to 2 mm in size, can reach the Earth’s surface through collisions with asteroids or by fragmentation of comets in space. When MMs enter the atmosphere, they are heated to varying degrees depending on their size, mass, speed, and angle of entry. As a result of friction during atmospheric entry, MMs undergo partial melting and subsequently recrystallize during undercooling. In this study, we focused on molten micrometeorites and identified four main types: silicate, glassy, ferruginous, and intermediate forms. The minera
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Xing, Chang-Ming, Christina Yan Wang, Bernard Charlier, and Olivier Namur. "Ubiquitous dendritic olivine constructs initial crystal framework of mafic magma chamber." Earth and Planetary Science Letters 594 (September 2022): 117710. http://dx.doi.org/10.1016/j.epsl.2022.117710.

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Shevko, A. Ya, D. V. Kuzmin, S. Z. Smirnov, M. P. Gora, I. R. Nizametdinov, and T. Yu Timina. "OLIVINE-ANORTHITE SPHERULITES OF KUDRYAVY VOLCANO: CRYSTALLIZATION CONDITIONS IN A SHALLOW CHAMBER." Tikhookeanskaya Geologiya 44, no. 2 (2025): 85–108. https://doi.org/10.30911/0207-4028-2025-44-2-85-108.

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The article is focused on the nature of olivine-plagioclase (allivalite) spherulites from a young basaltic andesite lava flow of the Kudryavy volcano. Spherulites are composed mainly of olivine (Fo81-77) and plagioclase (An95-92) and have a radial structure, which is not typical for allivalites of the Kuril-Kamchatka region. The study of mineral composition and primary melt inclusions in olivine showed that they formed from a low-alumina, low-potassium melt at temperatures of 970–1075 °C and oxygen fugacity corresponding to the NNO + 1.5 buffer. A characteristic feature of the initial melts wa
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Basch, Valentin, Elisabetta Rampone, Laura Crispini, Carlotta Ferrando, Benoit Ildefonse, and Marguerite Godard. "Multi-stage Reactive Formation of Troctolites in Slow-spreading Oceanic Lithosphere (Erro–Tobbio, Italy): a Combined Field and Petrochemical Study." Journal of Petrology 60, no. 5 (2019): 873–906. http://dx.doi.org/10.1093/petrology/egz019.

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Abstract Many recent studies have investigated the replacive formation of troctolites from mantle protoliths and the compositional evolution of the percolating melt during melt–rock interaction processes. However, strong structural and geochemical constraints for a replacive origin have not yet been established. The Erro–Tobbio impregnated mantle peridotites are primarily associated with a hectometre-size troctolitic body and crosscutting gabbroic dykes, providing a good field control on melt–rock interaction processes and subsequent magmatic intrusions. The troctolitic body exhibits high inne
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Welsch, Benoît, François Faure, Vincent Famin, Alain Baronnet, and Patrick Bachèlery. "Dendritic Crystallization: A Single Process for all the Textures of Olivine in Basalts?" Journal of Petrology 54, no. 3 (2012): 539–74. http://dx.doi.org/10.1093/petrology/egs077.

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Vítková, M., V. Ettler, Z. Johan, B. Kříbek, O. Šebek, and M. Mihaljevič. "Primary and secondary phases in copper-cobalt smelting slags from the Copperbelt Province, Zambia." Mineralogical Magazine 74, no. 4 (2010): 581–600. http://dx.doi.org/10.1180/minmag.2010.074.4.581.

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AbstractPyrometallurgical slags from three Cu-Co smelters (Nkana, Mufulira, Chambishi) in the Copperbelt Province, Zambia, were studied from mineralogical and chemical points of view. The slags were enriched in metals and metalloids, mainly Cu (up to 35 wt.%), Co (up to 2.4 wt.%) and As (up to 3650 ppm). The following primary phases were observed in slags: Ca-Fe silicates (clinopyroxene, olivine) and leucite, oxides (spinel-series phases), ubiquitous silicate glass and sulphide/metallic droplets of various sizes. The presence of glass and skeletal/dendritic crystal shapes indicated rapid cooli
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Dissertations / Theses on the topic "Dendritic olivine"

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Auxerre, Marion. "Cristallisation des olivines dans les chondres barrés et macro-porphyriques." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0049.

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Les chondres, constituants principaux des chondrites sont des sphères silicatées ferromagnésiennes d'origine ignée. Ils résultent de la fusion plus ou moins totale de précurseurs solides au cours d'événements brefs de haute température, c'est-à-dire des pics thermiques suivis d'épisodes de refroidissement rapide. Les chondres sont des témoins directs de la formation du système solaire et leurs conditions thermiques (surchauffe, vitesse de refroidissement…) peut apporter des informations sur les contraintes thermiques de formation. Pour cela, des études expérimentales et pétrographiques détaill
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Welsch, Benoît. "Signification des océanites dans le fonctionnement du Piton de la Fournaise, île de La Réunion." Electronic Thesis or Diss., La Réunion, 2010. https://tel.archives-ouvertes.fr/tel-04058678.

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Le volcan-bouclier du Piton de la Fournaise (Ile de La Réunion, Océan Indien) est connu pour avoir une bimodalité éruptive avec d'une part, des Steady State Basalts, qui sont des basaltes aphyriques de composition très homogène (6 – 7 wt % MgO) et d'autre part, des Océanites (8 – 29 wt % MgO), qui sont des basaltes riches en macrocristaux d’olivine (Ø > 0,5 mm, Fo85–83, 5 – 60 % vol.). Jusqu'à présent, deux origines différentes étaient proposées pour ces laves : (1) différentiation d'un magma mafique par cristallisation d'olivine et ségrégation gravitaire dans une chambre verticalement stra
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Thacker, Robert I. "Modulation of Human Dendritic Cell Activity by Adsorbed Fibrin(ogen)." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218553202.

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Reports on the topic "Dendritic olivine"

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ชินธเนศ, วิไล, บังอร ฉางทรัพย์ та จุฬาลงกรณ์มหาวิทยาลัย คณะแพทยศาสตร์. ภาควิชากายวิภาคศาสตร์. การกระจายของ คาลบินดิน-ดี 28เค และ พารวาลบูมิน ในเซลล์ประสาท โดยวิธีอิมมูโนฮิสโตเคมี ในสมองของกระแต (Tupaia glis) : รายงานการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 1995. https://doi.org/10.58837/chula.res.1995.14.

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ได้ทำการศึกษาการกระจายของ calcium binding protein ทั้งสองชิดคือ คาลบินดิน - ดี 28 เค และพารวาลบูมิน ในสมองกระแต (Tupaia glis) โดยวิธี peroxidase-antiperoxidase antidoby ที่ใช้ได้แก่ monoclonal antobody ซึ่งมีความเฉพาะกับ คาลบินดิน - ดี 28 เค และพารวาลบูมิน โดยใช้กระแตไม่จำกัด เพศ น้ำหนัก 130-200 กรัม จำนวน 8 ตัว แบ่งเป็น 4 กลุ่ม กลุ่มละ 2 ตัว ได้แก่กลุ่มซึ่งย้อม คาลบินดินดี 28 เค และตัดตามแนวขวาง กลุ่มซึ่งย้อมคาลบินดิน - ดี 28 เค และตัดตามแนวยาว กลุ่มซึ่งย้อมพารวาลบูมิน และตัดตามแนวขวาง และกลุ่มซึ่งย้อมพารวาลบูมิน และตัดตามแนวยาวจากการทดลองพบว่ามี immunoreactivity ของโปรตีนทั้งสองชนิดนี้ กระจา
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