Results 161 to 170 of about 115,566 (343)

LITHOGEOCHEMICAL CHARACTERISTICS OF TERRIGENOUS AND VOLCANOGENIC-TERRIGENOUS ROCKS OF THE LATE PALEOZOIC TOCHER FORMATION OF THE BAGDARIN SYNFORM (WESTERN TRANSBAIKALIA)

Геодинамика и тектонофизика
The paper presents new data on the composition of Late Paleozoic terrigenous and volcanogenic-terrigenous rocks of the Upper Devonian-Lower Carboniferous Tocher formation of the Bagdarin synform (Western Transbaikalia).
V. S. Tashlykov, O. R. Minina, Z. L. Motova, N. A. Doronina, S. I. Shtel’makh   +4 more
doaj   +1 more source

Scolecodonts from the Potter Farm formation of the Devonian of Michigan

, 1938
E. R. Eller
openalex   +2 more sources

Probing Pedogenetic Imprints and Functional Properties of Moroccan Clayey Materials Through FFC NMR Relaxometry

Magnetic Resonance in Chemistry, Volume 63, Issue 10, Page 796-809, October 2025.
Fast Field Cycling NMR relaxometry reveals how pedogenetic pathways imprint distinct dynamic signatures in Moroccan clays, shaping their microstructural heterogeneity and technological properties. ABSTRACT Understanding how soil formation processes influence the microstructure and the dynamic behavior of clay‐rich materials is essential for both ...
Paola Bambina, Calogero Librici, Ettore Madonia, Francesco Lanero, Roberta Bertani, Paolo Sgarbossa, Manal Monsif, Delia Francesca Chillura Martino, Paolo Lo Meo, Pellegrino Conte   +9 more
wiley   +1 more source

Modeling of Salt Tectogenesis in Connection With the Choice of the Main Directions for the Search For Hydrocarbon Deposits and Hydromineral Raw Materials Within the Kempendyai Depression (South-East оf the Siberian Platform)

Georesursy
A brief description of the geological structure of the sedimentary cover within the Kempendyai depression is given, in which two intervals of formation of unstable layers in the Cambrian and Devonian are distinguished, and their salt saturation is ...
B. V. Lunev, I. A. Gubin, V. V. Lapkovsky, R. V. Marinov   +3 more
doaj   +1 more source

Globicultrix nugax nov. gen. et nov. spec. (Chytridiomycota), an intrusive microfungus in fungal spores from the Rhynie chert [PDF]

, 2009
Dotzler, Nora, Krings, Michael, Taylor, Thomas N.   +2 more
core   +1 more source

Geological Time Capsule Part I [PDF]

This brief review of Earth history starts with the Archeozoic Period and goes through the Devonian Period. It explains time divisions and that the basic unit of geologic time is the period, which comprises two or more epochs, and that an era consists of ...

core  

The Geologic Features of the Occurrence of Copper in North America [PDF]

, 1933
Copper is of such widespread natural occurrence in North America and there are so few metal-mining districts that have not contributed to its production that it is obviously necessary in any brief general treatment of the geology of the copper deposits ...
Ransome, F. L.
core  

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration

Plant-Environment Interactions, Volume 6, Issue 5, October 2025.
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Soichi Osozawa
wiley   +1 more source

Sedimentation model of the middle Devonian clastic succession of the South Tatar Arch, Pashyian Regional stage, Volga-Ural Oil and Gas Province, Russia

Georesursy
The Pashyian Regional stage (horizon) is the main productive unit of the middle Devonian clastic succession of the South Tatar arch. This article presents, for the first time, maps of the lower and upper parts of the Pashyian, including data on sand ...
V. V. Silantiev, M. F. Validov, D. N. Miftakhutdinova, V. P. Morozov, B. G. Ganiev, A. A. Lutfullin, K. D. Shumatbaev, R. M. Khabipov, N. G. Nurgalieva, Z. A. Tolokonnikova, E. A. Korolev, V. A. Sudakov, A. V. Smirnova, K. A. Golod, A. A. Leontiev, R. R. Shamsiev, M. V. Noykin, V. E. Kosarev, D. A. Nikonorova, R. F. Akhmetov   +19 more
doaj   +1 more source

Effect of Deformation Mechanisms on Magnetic Record in Marble Shear Zones

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Processes that form and deform any rock leave distinct imprints on its microstructure. The description and interpretation of these microstructural features aids in understanding rock's evolution. The anisotropy of magnetic susceptibility is widely regarded as a method for characterizing rock microstructures.
Zuzana Roxerová, Vladimír Kusbach, Matěj Machek, Monika Kučeráková, Stanislav Vratislav, Anna Vávrová, Martin Chadima   +6 more
wiley   +1 more source