The genesis of silicic arc magmas in shallow crustal cold zones

J Adam, S Turner, T Rushmer - Lithos, 2016 - Elsevier
A number of currently popular models for the genesis of evolved arc-magmas (from basaltic
andesite to dacite) invoke repeated intrusion, partial-melting and differentiation at the base …

Subduction initiation at the Solomon back‐arc basin: Contributions from both island arc rheological strength and oceanic plateau collision

L Wang, L Dai, W Gong, S Li, X Jiang… - Geophysical …, 2022 - Wiley Online Library
It is generally accepted that the subduction polarity reversal (SPR) results from the strong
collision of two plates. Yet, the SPR of the Solomon Back‐arc Basin is started in the “soft …

Primitive andesites from the Taupo Volcanic Zone formed by magma mixing

C Beier, KM Haase, PA Brandl, SH Krumm - Contributions to Mineralogy …, 2017 - Springer
Andesites with Mg#> 45 erupted at subduction zones form either by partial melting of
metasomatized mantle or by mixing and assimilation processes during melt ascent. Primitive …

Revisiting the compositions and volatile contents of olivine-hosted melt inclusions from the Mount Shasta region: implications for the formation of high-Mg andesites

DM Ruscitto, PJ Wallace, AJR Kent - Contributions to Mineralogy and …, 2011 - Springer
Primitive chemical characteristics of high-Mg andesites (HMA) suggest equilibration with
mantle wedge peridotite, and they may form through either shallow, wet partial melting of the …

Petrology of “Mt. Shasta” high-magnesian andesite (HMA): A product of multi-stage crustal assembly

MJ Streck, WP Leeman - American Mineralogist, 2018 - degruyter.com
Occurrences of high-Mg andesite (HMA) in modern volcanic arcs raise the possibility that
significant volumes of continental crust could be directly derived from Earth's mantle. Such …

[HTML][HTML] 北阿尔金地区早古生代洋壳俯冲时限: 来自斜长花岗岩和花岗闪长岩的证据

彭银彪, 于胜尧, 张建新, 李三忠, 孙德有 - 中国地质, 2018 - cgsjournals.com
蛇绿岩在不同演化阶段自身形成的花岗质岩石和侵入到蛇绿岩中的花岗质岩石对于蛇绿岩的
精确定年具有重要意义, 是揭示洋壳俯冲时限的有力证据. 对北阿尔金红柳沟 …

Timing of Early Paleozoic oceanic crust subduction in North Altun: Evidence from plagiogranite and granodiorite

P Yinbiao, Y Shengyao, Z Jianxin… - Geology in …, 2018 - geochina.cgs.gov.cn
The granitic rocks that were formed from ophiolite or intruded into the ophiolites are
important for the precise dating of ophiolites, and some of them can be the powerful …

The origin of high-Mg magmas in Mt Shasta and Medicine Lake volcanoes, Cascade Arc (California): higher and lower than mantle oxygen isotope signatures …

E Martin, I Bindeman, TL Grove - Contributions to Mineralogy and …, 2011 - Springer
We report the oxygen isotope composition of olivine and orthopyroxene phenocrysts in lavas
from the main magma types at Mt Shasta and Medicine Lake Volcanoes: primitive high …

Crustal storage and ascent history of the Mt. Shasta primitive magnesian andesite: implications for arc magma crustal flux rates

M Phillips, CB Till - Contributions to Mineralogy and Petrology, 2022 - Springer
Primitive arc magmas provide our closest glimpse of the original mantle-derived magmas
that produce the more ubiquitous andesites and dacites found in subduction zones and that …

西藏洞错埃达克质火山岩LA-ICP-MS 锆石U-Pb 年龄及其构造意义

闫国川, 王保弟, 刘函, 王立全, 周放 - 地质通报, 2017 - dzhtb.cgs.cn
班公湖-怒江缝合带是青藏高原的主要缝合带之一, 其闭合时限还存在争议, 制约了班公湖-
怒江特提斯洋演化历史的研究. 在班公湖-怒江缝合带洞错地区新识别出一套早白垩世晚期的粗 …