Facility Support: Institute for Rock Magnetism

设施支持：岩石磁学研究所

• 批准号: 1642268
• 负责人: Bruce Moskowitz
• 金额: $ 209.4万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-04-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1642268&HistoricalAwards=false
• 关键词: Facility; Support; Institute; Rock; Magnetism

The Institute for Rock Magnetism (IRM) at the University of Minnesota will conduct research on rock magnetism as a multi-user facility for the next five years. They will operate a full suite of sensitive instrumentation for detailed study of magnetic properties of natural materials, provide for training of graduate and postgraduate students in state-of-the-art paleomagnetic analysis techniques and facilitate international collaborations through the Visiting Fellows program and a biennial conference series. Paleomagnetic and geomagnetic research crosscuts many of the disciplinary areas of the Earth Sciences Division.Research facilitated by the analytical and technical capabilities of the IRM includes high resolution studies of variability in the intensity of the Earth's magnetic field in order to elucidate fundamental questions surrounding the origin of the geodynamo, characterization of the properties of microbial nanophase magnetic minerals, and the origin of magnetization in minerals and the behavior of magnetic minerals in response to environmental perturbations in temperature and applied magnetic fields. The scale of investigations extends from bacterial magnetic particles and environmental reconstructions to plate tectonic reconstructions and magnetic mapping of other planets.

明尼苏达大学岩石磁学研究所 (IRM) 将在未来五年内作为多用户设施开展岩石磁学研究。 他们将操作全套灵敏仪器，用于详细研究天然材料的磁性，为研究生和研究生提供最先进的古地磁分析技术的培训，并通过访问学者计划和两年一次的项目促进国际合作会议系列。古地磁和地磁研究贯穿地球科学部的许多学科领域。IRM 的分析和技术能力促进的研究包括对地球磁场强度变化的高分辨率研究，以阐明围绕起源的基本问题地球发电机的特性、微生物纳米相磁性矿物的特性表征、矿物磁化的起源以及磁性矿物响应温度和施加磁场的环境扰动的行为。研究范围从细菌磁性粒子和环境重建到板块构造重建和其他行星的磁测绘。

项目成果

Iron dissolution and speciation in atmospheric mineral dust: Metal-metal synergistic and antagonistic effects

大气矿物粉尘中铁的溶解和形态：金属-金属的协同作用和拮抗作用

• DOI: 10.1016/j.atmosenv.2018.06.010
• 发表时间: 2018-08-01
• 期刊: Atmospheric Environment
• 影响因子: 5
• 作者: E. Hettiarachchi;R. Reynolds;H. Goldstein;B. Moskowitz;Gayan Rubasinghege
• 通讯作者: Gayan Rubasinghege

Comparison of Thermal and Microwave Paleointensity Estimates in Specimens Displaying Non‐Ideal Behavior in Thellier‐Style Paleointensity Experiments

在泰勒式古强度实验中表现出非理想行为的样本中热和微波古强度估计的比较

• DOI: 10.1029/2020jb019802
• 发表时间: 2020-08-01
• 期刊: Journal of Geophysical Research: Solid Earth
• 作者: J. M. Grappone;A. Biggin;Thomas J. Barrett;Mimi J. Hill;Courtney J. Sprain
• 通讯作者: Courtney J. Sprain

Magnetic hysteresis of magnetite, pyrrhotite and hematite at high temperature

磁铁矿、磁黄铁矿、赤铁矿高温磁滞现象

• DOI: 10.1093/gji/ggaa569
• 发表时间: 2021-01
• 期刊: Geophysical Journal International
• 影响因子: 2.8
• 作者: Dunlop; David J
• 通讯作者: David J

High-temperature creep of magnetite and ilmenite single crystals

磁铁矿和钛铁矿单晶的高温蠕变

• DOI: 10.1007/s00269-020-01122-6
• 发表时间: 2020-12
• 期刊: Physics and Chemistry of Minerals
• 影响因子: 1.4
• 作者: Till, J. L.;Rybacki, E.
• 通讯作者: Rybacki, E.

Attraction in the Dark: The Magnetism of Speleothems

黑暗中的吸引力：洞穴洞穴的磁性

• DOI: 10.2138/gselements.17.2.113
• 发表时间: 2021-04
• 期刊: Elements
• 影响因子: 4.5
• 作者: Feinberg, Joshua M.;Hobart, Kathryn K.
• 通讯作者: Hobart, Kathryn K.