Acquisition of a Superconducting Rock Magnetometer and a Magnetostatically Shielded Room

9906070 Kodama该补助金为利哈伊大学古地磁实验室购买超导岩石磁力计、自动消磁器、自动样品处理器和静磁屏蔽室的费用提供部分支持。利哈伊大学地球与环境科学系的教授、首席研究员儿玉健（Ken Kodama）和他的研究生以及正在进行古地磁研究项目的本科生将在他们的研究中使用该设备。利哈伊大学的新古地磁设备将取代老化的超导岩石磁力计和故障的交变场退磁器。这两种设备都不再得到其制造商的支持。该设备将使PI和他的学生能够继续他们的工作，描绘埋藏压实对磁铁矿和含赤铁矿沉积岩的磁倾角的影响，构造应变对古地磁方向准确性的影响，以及对近期湖泊沉积物的环境磁性研究。静磁屏蔽室将是特别重要的继续PI的最新压实校正工作的弱磁化海洋沉积岩，建议外来的北美西部岩石。新的古地磁设备和静磁屏蔽室将由利哈伊现有的古地磁设备（热脱磁器、脉冲磁化器、部分无滞后回复磁化（pARM）磁化器和取样钻）和最近获得的部分由NSF资助的磁化率各向异性（AMS）仪进行补充。

9906070KodamaThis grant provides partial support for the costs of acquiring a superconducting rock magnetometer, an automatic degausser, an automatic sample handler, and a magnetostatically-shielded room for the paleomagnetics laboratory at Lehigh University. The PI, Ken Kodama, a full professor in the Earth and Environmental Sciences Department at Lehigh, and his graduate students, as well as undergraduates conducting paleomagnetic research projects, will use the equipment in their research.The new paleomagnetic equipment at Lehigh will replace an aging superconducting rock magnetometer and a malfunctioning alternating field demagnetizer. Both of these pieces of equipment are no longer supported by their manufacturers. The equipment will allow the PI and his students to continue their work on delineating the effects of burial compaction on the magnetic inclination of magnetite and hematite-bearing sedimentary rocks, the effects of tectonic strain on the accuracy of a paleomagnetic direction, and on environmental magnetic studies of recent lake sediments. The magnetostatically-shielded room will be particularly important for the continuation of the PI's most recent compaction correction work on weakly magnetized marine sedimentary rocks that suggest allochthoneity for western North American terranes. The new paleomagnetic equipment and the magnetostatically-shielded room will be complemented by existing paleomagnetic equipment at Lehigh (thermal demagnetizer, impulse magnetizer, partial anhysteretic remanent magnetization (pARM) magnetizer, and sampling drills) and a recently acquired, partially NSF-funded anisotropy of magnetic susceptibility (AMS) meter.***