Results 81 to 90 of about 7,983 (211)
Geochemistry, Geophysics, Geosystems, 2008 The Steens Basalt, now considered part of the Columbia River Basalt Group (CRBG), contains the earliest eruptions of this magmatic episode. Lava flows of the Steens Basalt cover about 50,000 km2 of the Oregon Plateau in sections up to 1000 m thick.
Nicholas A. Jarboe +4 more
doaj +1 more source
Miocene magnetostratigraphy from Equatorial Pacific sediments (ODP Site 1218, Leg 199) [PDF]
, 2004 Pliocene and Miocene magnetostratigraphy from ODP Site 1218 (Equatorial Pacific) has been obtained by measurements made on u-channel samples, augmented by about 50 discrete samples.
Channell, James E. T. +3 more
core +3 more sources
A >70‐Myr‐Long Geomagnetic Field Reversal Hyperactivity Across the Ediacaran‐Cambrian Transition
Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.Abstract The long‐term variation of the geomagnetic field is a key constraint for unraveling the geodynamo processes and the evolution of Earth's deep interior. However, the geomagnetic reversal pattern during the Ediacaran–Cambrian transition remains elusive. Here we present an integrated magneto‐ and cyclo‐stratigraphic study of a ∼1.8‐Myr‐long, late
Fuyun Shen +6 more
wiley +1 more source
Are regional stages necessary? [PDF]
, 2005 The bipartition of the Carboniferous System adopted by the International Commission of Stratigraphy for the world stratigraphic chart is impractical in Gondwana.
Gonzalez, Carlos Roberto
core
Magnetostratigraphy of Equatorial Pacific Site 503 Hydraulic Piston Cores [PDF]
, 1982 The paleomagnetic measurement procedure at Site 503 was similar to that described for Site 502 (See preceding chapter). Each core section was measured with the longcore spinner magnetometer at 10-cm intervals.
Kent, Dennis V., Spariosu, Dann J.
core +2 more sources
Maureen Steiner, Pioneer in the Study of the Magnetic Polarity Timescale
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract This perspective is in memory of Maureen Steiner (1944–2023), who was a pioneer in the study of geomagnetism and paleomagnetism. Over an approximately 50‐year‐long career, she made many contributions to the study of geomagnetic history and its application to diverse geological problems.
Spencer G. Lucas
wiley +1 more source
CPCP: Colorado Plateau Coring Project — 100 Million Years of Early Mesozoic Climatic, Tectonic, and Biotic Evolution of an Epicontinental Basin Complex [PDF]
, 2008 Early Mesozoic epicontinental basins of western North America contain a spectacular record of the climatic and tectonic development of northwestern Pangea as well as what is arguably the world's richest and most-studied Triassic-Jurassic continental ...
Geissman, John W. +2 more
core +4 more sources
Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract My life in science, as a faculty member in Higher Education (The Academy), and as a proud member of AGU, reflects the fact that I am one of the very fortunate ones in the Geosciences who went through undergraduate and graduate years during the true blossoming of the science in the early years after the acceptance of Plate Tectonics.
John W. Geissman
wiley +1 more source
Types of paleomagnetic record in Devonian rocks: new data on the Central Devonian field and analysis of the results [PDF]
Нефтегазовая геология: Теория и практикаTo date, there are significant differences in the existing magnetostratigraphic scales and trajectories of the apparent motion of the paleomagnetic pole for the Devonian period, which makes it extremely difficult to apply the paleomagnetic method to ...
Sal'naya N.V.
doaj
The stratigraphy of the Penarth Group (Late Triassic) of the East Devon coast [PDF]
, 2008 The cliff and foreshore exposures in the Devon part of the Dorset and East Devon Coast World Heritage Site expose an unbroken late Triassic to early Jurassic succession.
Gallois, Ramues W
core