The Origin of Bimodal Volcanic Suites: A Study of Newberry Volcano, Oregon
双峰火山群的起源:俄勒冈州纽伯里火山的研究
基本信息
- 批准号:8904042
- 负责人:
- 金额:$ 6.49万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1989
- 资助国家:美国
- 起止时间:1989-06-01 至 1991-11-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The origin of bimodal volcanism has been a particularly persistent problem in igneous petrology. This project seeks to understand the petrologic processes responsible for bimodal basalt-rhyolite volcanic suites. Some petrogenetic studies have assumed such volcanic suites formed by mechanisms operating in a single, large, long-lived magma chamber, where complex AFC processes are required to explain the compositional variations in bimodal suites. Here it is suggested that bimodal suites are produced by repeated injection of mafic magma into the crust. These small volume bodies cause partial melting of the crust. Basalt-rhyolite magmas are generated in a series of small, unconnected reservoirs. Lavas erupted over a large area within a short time may be related only by their common anatectic origin. Repeated injection of mafic magma, and subsequent crustal partial fusion and melt crystallization will generate significant changes in the character of the crust beneath long-lived volcanic systems. Recent geophysical studies and excellent geologic constraints make this volcano ideal for testing this proposed model. Holocene lavas will be used to test the generation of this volcanic suite in small unconnected magma chambers. Then the applicability of the crustal distillation model will be tested by comparing differences in the Holocene and Pleistocene volcanic suites to determine if temporal changes in lava characteristics agree with predictions. Confirmation of this model could dramatically affect petrologists' perceptions of magma chambers and quantitative modelling of geochemical data from temporally and spatially related lavas.
双峰式火山作用的成因一直是火成岩岩石学中一个特别长期存在的问题。该项目旨在了解玄武岩-流纹岩双峰火山岩套的岩石学过程。一些岩石成因研究认为,这种火山岩套是由在单一、大型、长寿的岩浆室中运行的机制形成的,在那里需要复杂的AFC过程来解释双峰套岩中的成分变化。据此认为,双峰型岩套是镁铁质岩浆反复注入地壳形成的。这些小体积的天体导致地壳的部分融化。玄武岩-流纹岩岩浆是在一系列不相连的小型储集层中产生的。在短时间内大面积喷发的熔岩可能只与它们共同的深熔起源有关。反复注入镁铁质岩浆,以及随后的地壳部分熔融和熔融结晶,将使长期存在的火山系统之下的地壳性质发生重大变化。最近的地球物理研究和出色的地质约束使这座火山成为测试这一提议模型的理想之选。全新世熔岩将被用来测试这个火山岩套在小而不相连的岩浆室中的生成。然后,将通过比较全新世和更新世火山岩套的差异来检验地壳蒸馏模型的适用性,以确定熔岩特征的时间变化是否与预测相符。这一模型的确认可能会极大地影响岩石学家对岩浆房的认识,以及从时间和空间上相关的熔岩对地球化学数据的定量模拟。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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James Myers其他文献
International Journal of Computational Linguistics & Chinese Language Processing Advisory Board Editorial Board Speech Processing Information Retrieval Linguistics & Language Teaching Natural Language Processing Computational Linguistics & Chinese Language Processing Aims and Scope Contents Papers D
国际计算语言学杂志
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Jason S Chang;A. Sinica;Chu;H. K. Lin;Shan Lee;Richard Sproat;Keh;Chiu;Hsiao;Wang;Kam;Hong Kong;H. K. Chung;Yuen;Hung;Hsin;Taipei Yih;Pu;Hang Li;Wen;S. Hsieh;James Myers;Jane S. Tsay;Jing;Sue;Tyne Liang;Chao;Jyi;Jian Su;E. Editor;Joseph Harwood;Min Southern;Spoken;Jia;Chiung;James Hsu;Jane S Myers;Tsay;Ming;Yih;Document Retrieval;Shih;Berlin Chen;Jia;Chiung - 通讯作者:
Chiung
麻酔科シミュレーションでの共通基盤構築と情報提示行為:ヴァーチャル・リアリティを用いたシミュレータ制作のための事前研究
建立通用基础设施并在麻醉模拟中呈现信息:使用虚拟现实创建模拟器的初步研究
- DOI:
- 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
土屋慶子;佐藤仁;中村京太;藤井ありさ;桑原大輔;奥山由佳;Andrew Mackenzie;James Myers;安部猛;冬野美晴 - 通讯作者:
冬野美晴
MNEMOSENE++: Scalable Multi-Tile Design with Enhanced Buffering and VGSOT-MRAM based Compute-in-Memory Crossbar Array
MNEMOSENE:具有增强缓冲和基于 VGSOT-MRAM 的内存计算交叉阵列的可扩展多块设计
- DOI:
10.1109/icecs58634.2023.10382874 - 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
C. Escuin;Fernando García;Mahdi Zahedi;P. Ibáñez;Teresa Monreal Arnal;Víctor Viñals;J. Llabería;James Myers;J. Ryckaert;Dwaipayan Biswas;F. Catthoor - 通讯作者:
F. Catthoor
話し手にとっての発話境界
说话者的话语边界
- DOI:
- 发表时间:
2020 - 期刊:
- 影响因子:0
- 作者:
土屋慶子;佐藤仁;中村京太;藤井ありさ;桑原大輔;奥山由佳;Andrew Mackenzie;James Myers;安部猛;冬野美晴;定延利之 - 通讯作者:
定延利之
Embedded SRAM and Cortex-M0 Core Using a 60-nm Crystalline Oxide Semiconductor
使用 60 nm 晶体氧化物半导体的嵌入式 SRAM 和 Cortex-M0 内核
- DOI:
10.1109/mm.2014.96 - 发表时间:
2014 - 期刊:
- 影响因子:3.6
- 作者:
H. Tamura;K. Kato;T. Ishizu;W. Uesugi;A. Isobe;N. Tsutsui;Yasutaka Suzuki;Y. Okazaki;Y. Maehashi;J. Koyama;Yoshitaka Yamamoto;S. Yamazaki;M. Fujita;James Myers;P. Korpinen - 通讯作者:
P. Korpinen
James Myers的其他文献
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{{ truncateString('James Myers', 18)}}的其他基金
Preparing Students for Citizenship: Fostering Critical Thinking and Problem-solving Skills through Quantitative Reasoning and Scientific Literacy
为学生成为公民做好准备:通过定量推理和科学素养培养批判性思维和解决问题的能力
- 批准号:
0737533 - 财政年份:2007
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
A New Paradigm for Curriculum Development and Dissemination:The WWW Earth Resources Educational Site (ERES)
课程开发和传播的新范式:WWW 地球资源教育网站 (ERES)
- 批准号:
9653193 - 财政年份:1997
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
Electrical Engineering and Computer Science Projects to Support Research at the National Solar Observatory
支持国家太阳天文台研究的电气工程和计算机科学项目
- 批准号:
9322370 - 财政年份:1994
- 资助金额:
$ 6.49万 - 项目类别:
Continuing Grant
Acquisition of a State-of-the-Art Electron Microprobe
获得最先进的电子显微探针
- 批准号:
9413348 - 财政年份:1994
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
A Petrologic Investigation of the Yunaska Volcanic Complex, Aleutian Islands: Assessment of the Influence of Time and Space on Subduction Magmatism
阿留申群岛尤纳斯卡火山杂岩的岩石学研究:评估时间和空间对俯冲岩浆作用的影响
- 批准号:
9117809 - 财政年份:1992
- 资助金额:
$ 6.49万 - 项目类别:
Continuing Grant
Tectonic and Petrologic Controls on Arc Magmatic Processes and Magma Evolution: Seguam Island Aleutian Arc, Alaska
构造和岩石学对弧岩浆过程和岩浆演化的控制:阿拉斯加塞瓜姆岛阿留申岛弧
- 批准号:
8917354 - 财政年份:1990
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: A Detailed Petrologic Study of Kanaga and Seguam; An Attempt to Confirm the Temporal Evolution of Aleutian Arc Centers
合作研究:卡纳加和塞瓜姆的详细岩石学研究;
- 批准号:
8607324 - 财政年份:1986
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
The Precambrian Lake Owens Mafic Complex, SE Wyoming: A Detailed Petrologic Investigation of an Oxide-Rich, Unusual Layered Mafic Complex
怀俄明州东南部前寒武纪欧文斯湖镁铁质杂岩:对富含氧化物、不寻常的层状镁铁质杂岩进行详细的岩石学调查
- 批准号:
8508118 - 财政年份:1985
- 资助金额:
$ 6.49万 - 项目类别:
Continuing Grant
Proposal to Upgrade an Automated, Electron Microprobe
升级自动化电子显微探针的提案
- 批准号:
8419550 - 财政年份:1985
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
Avifaunal Survey of Nearctic Charadrii on the Pacific Coast
太平洋沿岸近极 Charadrii 鸟类区系调查
- 批准号:
8318773 - 财政年份:1984
- 资助金额:
$ 6.49万 - 项目类别:
Standard Grant
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