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DOI | 10.1029/2020GL091617 |
RESET: A method to monitor thermoremanent alteration in Thellier‐series paleointensity experiments | |
Huapei Wang; Dennis V. Kent | |
2021-01-25 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Accurately estimating the paleomagnetic field intensity recorded in terrestrial and planetary materials is the key to understanding dynamo processes. Thellier‐series stepwise‐heating methods with partial thermoremanent magnetization (pTRM) checks for alteration are considered the most reliable technique even though pTRM checks are shown to be incapable of detecting the entirety of thermal alteration. We utilize a recently developed multidomain‐correction experiment (or RESET) to monitor thermally induced magnetic property alteration that might happen on the very specimen used in Thellier‐series experiments. We also use rock magnetic properties to track the physicochemical alteration of fresh companion specimens of Galapagos lavas after they were used for paleointensity determinations. Our results show that laboratory heating induced thermal alteration of a typical Galapagos lava sample starts to occur at around 500ºC. It escaped detection by pTRM checks but was caught by our RESET method. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/313729 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Huapei Wang,Dennis V. Kent. RESET: A method to monitor thermoremanent alteration in Thellier‐series paleointensity experiments[J]. Geophysical Research Letters,2021. |
APA | Huapei Wang,&Dennis V. Kent.(2021).RESET: A method to monitor thermoremanent alteration in Thellier‐series paleointensity experiments.Geophysical Research Letters. |
MLA | Huapei Wang,et al."RESET: A method to monitor thermoremanent alteration in Thellier‐series paleointensity experiments".Geophysical Research Letters (2021). |
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