Purchase of combined Alternating Gradient Magnetometer (AGM) / Vibrating Sample Magnetometer (VSM) system

0432883霍尔这笔赠款支持收购组合交变梯度磁强计（AGM）/振动样品磁强计（VSM）系统，将用于研究地质材料中矿物载体磁性的磁滞行为在古地磁实验室在佛罗里达大学。 磁化率和磁化率等参数的滞后行为为磁性矿物、磁性晶粒大小和磁畴状态的识别提供了线索。 了解沉积档案和岩石中磁性载体的磁性矿物学、粒度和磁畴状态对于准确解释剩磁方向和古强度记录至关重要，这些记录可以进行高分辨率地层对比、板块构造重建和阐明地球磁场的过去行为。 此外，磁性矿物学和粒度是解释古环境条件的有用参数。 AGM/VSM将补充地质科学系现有的古地磁设备，并为教师和学生的研究提供新的分析机会。

0432883ChannellThis grant supports acquisition of a combined Alternating Gradient Magnetometer (AGM)/ Vibrating Sample Magnetometer (VSM) system that will be used to study the hysteresis behavior of magnetic properties of mineral carriers in geological materials in the Paleomagnetics Laboratory at the University Florida. Hysteresis behavior of parameters such as susceptibility and coercivity provide clues for the identification of magnetic minerals, magnetic grain size and domain state. An understanding of the magnetic mineralogy, grain size and domain state of the magnetic carriers in sedimentary archives and rocks are critical for accurately interpreting magnetic remanence directional and paleointensity records that can allow for high resolution stratigraphic correlation, plate tectonic reconstructions and elucidation of the past behavior of Earth's magnetic field. In addition, magnetic mineralogy and grain size are useful parameters for interpretation of paleoenvironmental conditions. The AGM/VSM will complement existing paleomagnetic equipment in the Department of Geological Sciences and offer new analytical opportunities for faculty and student research.***