Jurnal Internasional Holosen Paleointensitas Pulau Hawai’i Dari Vulkanik Kaca – Cromwell – – Geokimia, Geofisika, Geosystems
Holocene Paleointensity of Hawai'i Island From Volcanic Glass - Cromwell - - Geochemistry, Geophysics, Geosystems
This study presents a high-quality paleointensity note and 14 C determination of radiocarbon C age from Hawaiian Island during Holocene. Previous a study of Hawai'i using the experimental method and the statistical selection criteria can produce inaccurate estimates of geomagnetic field strength. Extra high quality paleointensity results can be used to evaluate the existing Hawaiian dataset and investigate The behavior of the holocene geomagnetic field. New paleointensity site of 22 lava flows calculated using IZZI-Thellier laboratory techniques and a stringent selection series criteria. Rapidly cooled and cooled glass volcanic materials are collected for all sites. Isotopic the determination of age ranges from 270 -> 10,000 years before now (nine 14 C new age is also presented as part of this research). The median intensity for 22 the current is 47.5 μ T, with the absolute deviation of the median deviation of 5.6 μ T; substantially larger than the current field strength in Hawai'i (~36 μ T). This new result is proportional to previously published data from this location and consistent with global paleointensity models. No evidence of intensity "Spike" at 3,000 years before now, as seen in the Levant and elsewhere. Previous published data vary in intensity with experimental techniques relative to data usage glass materials and stringent selection criteria. Low non-Thellier-type bias data, the results of this technique estimate the intensity of a possible non-single domain magnetic operator. Thellier-Thellier data is high biased, the reason remains is not clear because no cooling rate effect is shown and we can not reproduce high bias with different selection criteria.