Results 21 to 30 of about 519 (182)

An archaeomagnetic study of the Ishtar Gate, Babylon. [PDF]

PLoS ONE
Data from the marriage of paleomagnetism and archaeology (archaeomagnetism) are the backbone of attempts to create geomagnetic field models for ancient times. Paleointensity experimental design has been the focus of intensive efforts and the requirements
Anita Di Chiara, Lisa Tauxe, Helen Gries, Barbara Helwing, Matthew D Howland, E Ben-Yosef   +5 more
doaj   +2 more sources

Holocene paleosecular variation from dated lava flows on Maui (Hawaii)

Physics of the Earth and Planetary Interiors, 2007
ow inclination and low secular variation seem to be present for at least the past 5 Myear in central Pacific. The period covering the past 10 kyear is crucial to the study of the field variability and to fill the gap between historical field measurements and long-term paleomagnetic records.
Herrero-Bervera, Emilio, Valet, Jean-Pierre   +1 more
openaire   +2 more sources

A Feasibility Study of Microbialites as Paleomagnetic Recorders

Frontiers in Earth Science, 2021
Microbialites–layered, organosedimentary deposits–exist in the geologic record and extend back in deep time, including all estimated times of inner core nucleation.
Ji-In Jung, Julie A. Bowles
doaj   +1 more source

Current status and problems of magnetostratigraphic scale development for Kamchatka in the Brunhes epoch. Part 1. Theoretical aspect

Учёные записки Казанского университета: Серия Естественные науки, 2022
Magnetostratigraphy has become increasingly popular among geologists worldwide, as evidenced by recent scientific publications. This article reviews the role and place of magnetostratigraphy in general stratigraphic studies.
A.G. Zubov
doaj   +1 more source

The Cretaceous Normal Superchron: A Mini-Review of Its Discovery, Short Reversal Events, Paleointensity, Paleosecular Variations, Paleoenvironment, Volcanism, and Mechanism

Frontiers in Earth Science, 2022
The Cretaceous Normal Superchron (CNS) was first defined in the 1960s to explain the Cretaceous Quiet Zone in marine magnetic anomaly profiles, which includes no or fewer geomagnetic reversals.
Yutaka Yoshimura
doaj   +1 more source

The Time-Averaged Field and Paleosecular Variation

, 2015
C.L. Johnson, P. McFadden
openaire   +2 more sources

An activity index for geomagnetic paleosecular variation, excursions, and reversals [PDF]

Geochemistry, Geophysics, Geosystems, 2017
AbstractMagnetic indices provide quantitative measures of space weather phenomena that are widely used by researchers in geomagnetism. We introduce an index focused on the internally generated field that can be used to evaluate long term variations or climatology of modern and paleomagnetic secular variation, including geomagnetic excursions, polarity ...
S. Panovska, C. G. Constable
openaire   +3 more sources

Paleosecular variation and the average geomagnetic field at ±20° latitude [PDF]

Geochemistry, Geophysics, Geosystems, 2006
We assembled a new paleomagnetic directional data set from lava flows and thin dikes for four regions centered on ±20° latitude: Hawaii, Mexico, the South Pacific, and Reunion. We investigate geomagnetic field behavior over the past 5 Myr and address whether geographical differences are recorded by our data set.
K. P. Lawrence, C. G. Constable, C. L. Johnson   +2 more
openaire   +1 more source

Time-Averaged Field and Paleosecular Variation

, 2007
C.L. Johnson, P. McFadden
openaire   +2 more sources

First archaeointensity reference paleosecular variation curve for South America and its implications for geomagnetism and archaeology

, 2019
We report comprehensive rock-magnetic and archaeointensity investigations from 21 well-constrained pottery fragments from the Catamarca province of northwest Argentina.
Gogorza, Claudia Susana, García Ruíz, Rafael, Cejudo, Ruben, Goguitchaichvili, Avto, Pereyra Domingorena, Lucas, Tarrago, Myriam Noemi, Greco Mainero, Mariano Catriel, Scattolin, Maria Cristina, Morales, Juan   +8 more
core   +2 more sources