Acquisition of a Piston and Cylinder Apparatus to Expand the Capabilities of the UAF Experimental Petrology Laboratory
Acquisition of a Piston and Cylinder Apparatus to Expand the Capabilities of the UAF Experimental Petrology Laboratory
批准号:
0238602
负责人:
Jessica Larsen
金额:
$4.03万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2003
资助国家:
美国
项目状态:
已结题
起止时间:
2003-03-15 至 2005-02-28
中文摘要
0238602 Larsen UAF实验岩石学实验室目前能够在浅层地壳岩浆房的特征条件下进行实验,深度约为20 km(T ~850摄氏度),温度约为1100摄氏度(P ~200 MPa)。 这笔赠款的资金将用于购买活塞缸装置,使我们能够在压力高达~4000 MPa和温度高达~2000摄氏度的条件下进行地壳和地幔相关成分的实验。 目前,许多研究人员依靠这类仪器来解决与了解火山和构造过程有关的重要问题,例如俯冲带和洋中脊地幔中的熔体生成、阳离子和阴离子扩散速率以及矿物和熔体之间的元素分配、重要的深部地壳和地幔矿物的相平衡以及对适合其他行星环境的材料的研究。 获得活塞缸装置将有助于扩大UAF地球物理研究所火山学组内现有NSF支持项目的实验范围。 此外,它将为那些对与地球以及其他行星系统有关的地壳和地幔岩石的高压研究的其他方面感兴趣的人打开大门。***
英文摘要
0238602LarsenThe UAF Experimental Petrology Laboratory is currently capable of performing experiments at conditions characteristic of shallow crustal magma chambers, to depths of ~20km (at T ~850 degrees C) and temperatures to ~1100 degrees C (at P ~200 MPa). Funds from this grant will support the acquisition of a piston-cylinder apparatus that will enable us to perform experiments on crust and mantle-relevant compositions at pressures up to ~4000 MPa and temperatures to ~2000 degrees C. Currently, many researchers rely upon this type of apparatus to address important questions relevant to understanding volcanic and tectonic processes, such as melt generation in the mantle at subduction zones and mid-oceanic ridges, cation and anion diffusion rates and element partitioning between minerals and melts, phase equilibria of important deep crustal and mantle minerals, and studies on materials appropriate for other planetary environments. The acquisition of the piston-cylinder apparatus will serve an important purpose in extending the range of experiments possible on existing NSF supported projects within the volcanology group at the UAF Geophysical Institute. In addition, it will open the door for those interested in other aspects of high-pressure research on crustal and mantle rocks relevant to the Earth, as well as other planetary systems. ***
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