Results 121 to 130 of about 2,119,061 (274)
Non‐Uniqueness, Symmetries and Invariance of Thermal History Modelling in Sedimentary Basins
Basin Research, Volume 38, Issue 4, July–August 2026.This paper approaches non‐unique inverse problems by generating a representative ensemble of all possible solutions using the concept of symmetry. In the context of basin modelling, a symmetry is any manipulation of a forward model's parameters (e.g., thermal history) that leaves the model output (e.g., downhole vitrinite reflectance) unchanged ...
J. Xiao, D. Waltham, Y. Wang
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Учёные записки Казанского университета: Серия Естественные наукиConodonts from the Devonian–Carboniferous boundary deposits in two wells within the Sarailinskaya Depression of the Kama-Kinel Trough System were studied.
G. M. Sungatullina +7 more
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Journal of Anatomy, Volume 249, Issue 1, Page 127-140, July 2026.Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek +2 more
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Devonian Sandstone Lithostratigraphy, Northern Arkansas [PDF]
, 1977 Two areas of Devonian sandstone development may be recognized in northern Arkansas. In northwestern Arkansas, the Clifty Formation comprises a massively bedded, super mature quartz arenite of Middle Devonian age overlain by thinner bedded, phosphatic ...
Manger, Walter L., Hall, Jeffery D.
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Seismic Evidence for Slab Tearing Beneath the Indo‐Myanmar Subduction Zone
Geophysical 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
Geophysical 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
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Dividing of the Luginetsk horizon of the Upper Devonian in the central part of Western Siberia [PDF]
, 2020 Based on a complex of paleontological materials, the Luginetsk horizon of the Upper Devonian is divided into ...
Родыгин, Сергей Александрович +3 more
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THE CAUSE OF BIOMASS EXTINCTION AT THE FRASNIAN-FAMENNIAN BOUNDARY, THE KERMAN PROVINCE SOUTHEASTERN, CENTRAL IRAN [PDF]
Journal of Sciences, Islamic Republic of Iran, 2002 About 35 samples were collected from lower and upper parts of the proposed Frasnianamennian boundary in three sections of Upper Devonian marine sediments of the Kerman province.
doaj
Eifelian (Middle Devonian) to Early Frasnian (Late Devonian) conodonts and strata in the Spanish Central Pyrenees: Global correlations and effects of climatic fluctuations in the biota [PDF]
The interval between the late Eifelian and early Frasnian was marked by significant paleoenvironmental instability, including major evolutionary, eustatic, and biotic events.
Valenzuela Ríos, José Ignacio +1 more
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Upper Givetian and Frasnian (Middle and Upper Devonian)conodonts from Ampriú (Aragonian Pyrenees, Spain): global correlations and palaeogeographic relations [PDF]
This report describes for the first time a part of the Middle and Upper Devonian conodont sequence of the Sierra Negra Subfacies in the Aragonian Pyrenees (Spain), establishing the basis for further sound correlations both across the distinct Pyrenean ...
Valenzuela Ríos, José Ignacio +1 more
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