Results 31 to 40 of about 763 (162)

High-Resolution Petrographic Evidence Confirming Detrital and Biogenic Magnetites as Remanence Carriers for Zongpu Carbonates in the Gamba Area, South Tibet

open access: yesFrontiers in Earth Science, 2021
Paleocene carbonates from the Gamba area of South Tibet provide the largest paleomagnetic dataset for constraining the paleogeography of the India-Asia collision in the early stage.
Qian Zhao   +3 more
doaj   +1 more source

Problems With Net Tectonic Rotation for Dikes and Suggestions for Alternative Approaches

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The net tectonic rotation method is an alternative to paleomagnetic tilt corrections. The method was originally developed for sedimentary rocks and lavas, which have paleohorizontal indicators, but was later adapted for dikes by assuming that dikes ...
Sarah J. Titus, Joshua R. Davis
doaj   +1 more source

Brunhes Paleomagnetic Directions and Paleointensities From Northern Hainan Island

open access: yesGeochemistry, Geophysics, Geosystems
Paleomagnetic studies typically assume that the long‐term, time‐averaged geomagnetic field behaves as a geocentric axial dipole (GAD). While paleodirectional data over the past five million years generally agree with GAD predictions, mid‐to‐low latitude ...
Mengqing Wang   +7 more
doaj   +1 more source

ADRIA AS PROMONTORY OF AFRICA AND ITS CONCEPTUAL ROLE IN THE TETHYS TWIST AND PANGEA B TO PANGEA A TRANSFORMATION IN THE PERMIAN

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2018
It has been almost 60 years since the first results from the Early Permian Bolzano Quartz Porphyries from the Trento Plateau of northern Italy (Southern Alps) showed paleomagnetic inclinations steeper than inclinations from broadly coeval units from ...
GIOVANNI MUTTONI, DENNIS V. KENT
doaj   +1 more source

Mechanochemical Enhancement of Siderite‐To‐Magnetite Conversion in Faults

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Magnetic phases in fault rocks offer potential “geothermometers” for estimating frictional heating during fault slip. However, the thermochemical kinetics of magnetic minerals subjected to shear deformation in hydrothermal fluids‐conditions typical of natural faults ‐ remains poorly understood, hindering accurate temperature estimates.
Tingting Du   +7 more
wiley   +1 more source

Paleomagnetism

open access: yesEos, Transactions American Geophysical Union, 1989
The Third Annual Northeast Paleomagnetic Workshop was held September 23 at the University of Massachusetts, Amherst; Laurie Brown of the university's geology department was the organizer. On September 22, Sue Halgedahl of Lamont Doherty Geological Observatory, Palisades, N.Y., gave a lecture on magnetic domain structure and its relationship to ...
openaire   +1 more source

A Curie Point Depth Model of the Conterminous United States Derived From a Prior‐Constrained Equivalent Source Inversion

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Curie Point Depth (CPD) is a key thermal boundary in the deep lithosphere and is widely used to constrain its thermal structure. However, uncertainties in magnetization and the non‐uniqueness of inversion lead to considerable inter‐study differences.
Chuanjie Chen   +3 more
wiley   +1 more source

Low Geomagnetic Field Intensity in Southern China 6,000 Years Ago

open access: yesGeophysical Research Letters
The West Pacific Anomaly (WPA), a low geomagnetic field anomaly observed in the 16th to 18th centuries, represents a recently recognized and complex feature of Earth's magnetic field.
Xin Luo   +14 more
doaj   +1 more source

Magnetic Reversals During the Deccan Volcanism: Paleomagnetic Insights From the Pachmarhi Dykes

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract The three main dyke swarms that are linked to the Deccan Continental Flood Basalts are the Nasik‐Pune, Western Coastal, and Narmada‐Satpura‐Tapi (N‐S‐T) swarms. Encompassing approximately 244 mapped basaltic dykes, mainly trending E‐W and positioned along an ancient tectonic zone, the Pachmarhi dyke swarm is situated in the eastern N‐S‐T ...
Garima Shukla   +2 more
wiley   +1 more source

A Relative Paleointensity (RPI)-Calibrated Age Model for the Corinth Syn-rift Sequence at IODP Hole M0079A (Gulf of Corinth, Greece)

open access: yesFrontiers 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.
Marco Maffione, Emilio Herrero-Bervera
doaj   +1 more source

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