Acquisition of Thermal and Alternating Field Demagnetizers

购置热消磁器和交变场消磁器

• 批准号: 9902723
• 负责人: James Channell
• 金额: $ 2.6万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9902723&HistoricalAwards=false
• 关键词: Acquisition; Thermal; Alternating; Field; Demagnetizers

9902723ChannellThis grant provides partial support for the costs of acquiring equipment to upgrade the paleomagnetics laboratory in the Department of Geology at the University of Florida (UF). Specific equipment will include an alternating field (AF) demagnetizer and a thermal demagnetizer. The UF paleomag lab is well equipped with both a u-channel superconducting rock magnetometer (SRM) and an SRM dedicated to the analysis of discrete samples. In the U.S., only two other laboratories currently operate u-channel instruments, the University of California Davis (Verosub) and the University of Hawaii (Herrerro-Bervera). PI's Channell and Opdyke utilize their rapid throughput u-channel SRM for analysis of long, high resolution paleomagnetic records in studies of magnetostratigraphy and secular variation of the geomagnetic field. A new AF demagnetizer will replace a no longer supported Schonstedt AF demagnetizer and a 60 sample capacity thermal demagnetizer will be used for paleointensity analyses via the Thellier-Thellier method in large collaborative project to characterize secular variation of the geomagnetic field from the Pliocene to present. This project entails a large field sampling program along a north-south transect from the Arctic to Antarctica along the Americas. ***

9902723 Channellthis Grant为购买设备的成本提供了部分支持，以升级佛罗里达大学（UF）地质学系的古磁实验室。 特定的设备将包括交替的磁场（AF）电磁机和热力消除仪。 UF Paleomag Lab配备了U通道超导岩磁力计（SRM）和用于分析离散样品的SRM。 在美国，目前只有另外两个实验室运营U通道仪器，加利福尼亚大学戴维斯大学（Verosub）和夏威夷大学（Herrerro-Bererro-Bervera）。 PI的Channell和Opdyke利用其快速的吞吐量U通道SRM来分析长，高分辨率的古磁记录，用于磁层磁学和世俗变异的研究。 新的AF Demagnetizer将替换不再支持的Schonstedt AF Demagnetizer，并将使用60个样本容量的热力消除仪通过大型协作项目中的Thellier-Thellier方法用于Paleyenthensentize分析，以表征来自Pliecene的地磁场的世俗变化。 该项目需要沿着从北极到美洲南极的南北横除一个大型野外抽样计划。 ***