Results 31 to 40 of about 3,470 (247)
Journal of Geophysical Research: Solid Earth, 2023 A foundational assumption in paleomagnetism is that the Earth's magnetic field behaves as a geocentric axial dipole (GAD) when averaged over sufficient timescales.
B. Cych +4 more
semanticscholar +1 more source
Frontiers in Earth Science, 2022 The Corinth basin (Greece) is a young continental rift that recorded cyclic basin paleoenvironment variations (i.e., marine to lacustrine) caused by glacio-eustatic sea level fluctuations during its initial connection to the global oceans.
M. Maffione, E. Herrero-Bervera
semanticscholar +1 more source
Geochemistry Geophysics Geosystems, 2022 Absolute paleointensity (API) of the geomagnetic field can be estimated from volcanic rocks by comparing the natural remanent magnetization (NRM) to a laboratory‐induced thermoremanent magnetization (Lab‐TRM).
Y. Yamamoto, L. Tauxe, H. Ahn, C. Santos
semanticscholar +1 more source
RESET: A Method to Monitor Thermoremanent Alteration in Thellier‐Series Paleointensity Experiments
Geophysical Research Letters, 2021 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 ...
Huapei Wang, D. Kent
semanticscholar +1 more source
Journal of Geophysical Research: Solid Earth, 2021 A fundamental assumption in paleomagnetism is that a geocentric axial dipole (GAD) geomagnetic field structure extends to the ancient field. Global paleodirectional compilations that span 0–5‐million year support a GAD dominated field structure with ...
H. Asefaw +3 more
semanticscholar +1 more source
Journal of Geophysical Research: Solid Earth, 2021 The magnetic record, preserved by igneous rocks in the form of thermoremanent magnetization (TRM) or thermo‐chemical remanent magnetization (TCRM), is essential to reconstruct Earth's absolute paleointensity (API) but strongly depends on the kinetic ...
V. Shcherbakov, F. Lhuillier, N. Sycheva
semanticscholar +1 more source
Paleointensity database updated [PDF]
Eos, Transactions American Geophysical Union, 1998 The updated version of the paleointensity database will be included in the new package that should be released by Mike McElhinny in May 1998. The new version comprises 1692 data records from 115 references. The database tables are also available as ASCII and Excel files via an anonymous ftp site (ftp.dstu.
Mereille Perrin +2 more
openaire +1 more source
Comparison of Thermal and Microwave Paleointensity Estimates in Specimens Displaying Non‐Ideal Behavior in Thellier‐Style Paleointensity Experiments [PDF]
, 2020 Determining the strength of the ancient geomagnetic field is vital to our understanding of the core and geodynamo but obtaining reliable measurements of the paleointensity is fraught with difficulties.
Courtney J. Sprain +14 more
core +1 more source
Paleointensities on 8 ka obsidian from Mayor Island, New Zealand [PDF]
Solid Earth, 2011 The 8 ka BP (6050 BCE) pantelleritic obsidian flow on Mayor Island, Bay of Plenty, New Zealand, has been investigated using 30 samples from two sites.
A. Ferk +3 more
doaj +1 more source
Behavior of paleointensity during the Paleogene [PDF]
Physics of the Earth and Planetary Interiors, 2014 Abstract Behavior of the intensity of geomagnetic field in the Paleogene was studied by the analysis of the sedimentary rocks of the Russian Plate. It is revealed that in the beginning of the Paleogene the variations of little-amplitude paleointensity (about 0.5 H 0 , where H 0 is the value of modern geomagnetic field taken as 40 μT) were ...
A.Yu. Kurazhkovskii +2 more
openaire +1 more source