Results 111 to 120 of about 9,274 (231)

Paleomagnetism of Lower-Middle Devonian and Upper Proterozoic-Cambrian(?) Rocks from Mejeria (Mauritania, West Africa) [PDF]

open access: yes, 1984
The paleomagnetism of two sedimentary rock units from the foreland of the Mauritanides of West Africa, in the Taganet region of Mauritania (Taoudeni basin) was studied to provide constraints on the paleocontinental positions of the southern continents in
D. V. Kent   +5 more
core   +2 more sources

Seismic Evidence for Slab Tearing Beneath the Indo‐Myanmar Subduction Zone

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Slab tearing has been increasingly recognized as a key geodynamic process influencing the evolution of the eastern Himalayan syntaxis. However, whether, where and how the subducted Indian slab beneath the Indo‐Myanmar subduction zone has been torn remains poorly constrained.
Shun Yang   +9 more
wiley   +1 more source

Early-Devonian intrusive magmatism of the Urals as indicator critical stage Paleozoic history mobile belt

open access: yesЛитосфера, 2015
It is established that during all-Uralian stage of mantle-type magmatism of Early Devonian age (410-393 Ma) the mantle Ordovician-Silurian magmatism was changed by mantle-crustal and crustal types.
G. B. Fershtater
doaj   +2 more sources

Late Carboniferous Paleomagnetism From North Qiangtang Block Reveals a Multibranched Paleo‐Tethys Ocean

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The North Qiangtang Block occupies a pivotal position within the eastern Tethyan realm, and its paleogeographic reconstruction is critical for constraining Tethyan geometry and evolution. However, its Late Paleozoic paleogeography and Paleo‐Tethyan Ocean–continent configuration remain controversial due to limited reliable age‐constrained ...
Jiahui Zhang   +12 more
wiley   +1 more source

Development of a Regional Stratigraphic Framework For Upper Devonian Reef Complexes Using Integrated Chronostratigraphy: Lennard Shelf, Canning Basin, Western Australia [PDF]

open access: yes, 2013
Questions regarding heterogeneity and architecture of reefal carbonate platform systems may be resolved by well-constrained chronostratigraphic frameworks, developed from the integration of multiple independent signals in the rock record.
Tohver, E.   +19 more
core  

Stratigraphic palynology of Devonian boreholes from northern Saudi Arabia

open access: yesCarnets de Géologie, 2005
This extended abstract describes well-preserved palynomorph assemblages recovered from Devonian strata in five shallow boreholes in the northern part of Saudi Arabia.
Breuer Pierre   +5 more
doaj  

Middle Devonian Dipnoan tooth-plates from Estonia [PDF]

open access: yes, 2015
Middle Devonian dipnoan tooth-plates have been known for an hundred and sixty years. However, although gross morphology has been described, there are still several difficulties with these descriptions.
Barwick, Richard, Campbell, Kenton
core  

Biostratigraphy of Middle-Late Devonian deposits of Bahram Formation in Kuh-e-Reza-Abad section (SW Damghan) [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2017
Introduction In the Lower Devonian, western parts of Iran were almost out of the water while central and East Iran and Eastern Alborz have covered by the shallow marine to continental facies.
Bahram Razi-Allipour   +2 more
doaj  

Some Devonian stromatoporoids from Esterhazy shaft, Saskatchewan. [PDF]

open access: yes, 1966
Stromatoporoids from the Esterhazy Shaft, Saskatchewan, collected from the Duperow formation (lower Upper Devonian), Souris River formation, First Red Bed and Dawson Bay formation (Middle Devonian) are found between depths of 1,987 feet and 3,058. 9 feet.
Shah, Dasharathlal Hiralal.
core  

Palynological age constraint of Les Vilelles unit, Catalan Coastal Chain, Spain

open access: yesGeologica Acta, 2015
Les Vilelles unit is a detrital sequence exposed at the southwestern margin of the Catalan Coastal Chain (CCC), NE Spain, below the Carboniferous turbiditic series.
F. GONZÁLEZ   +3 more
doaj  

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