Results 101 to 110 of about 8,547 (241)

BARITE, HEMATITE AND CINNABAR ORE DEPOSITS IN THE DUSINA AREA, MID-BOSNIAN SCHIST MOUNTAINS

open access: yesRudarsko-geološko-naftni Zbornik, 1996
In the Dusina area, which is built up of Lower Palaeozoic metasediments, Devonian carbonate complex and Upper Palaeozoic metarhyolites unconformab1y overlain by Upper Permian sediments, numerous ore occurrences have been investigated: (a) "stratabound ...
Ivan Jurković
doaj  

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

Stratigraphy and paleontology of the lower Devonian sequence, southwest Ellesmere Island, Canadian Arctic Archipelago

open access: yes, 1984
The Lower Devonian carbonate-clastic sequence of southwest Ellesmere Island accumulated in the Franklinian Basin at approximately 15(DEGREES)N latitude.
Smith, Gary Parker.
core  

The Devonian continental rocks of the lower Restigouche River, Quebec

open access: yes, 1968
The Devonian continental rocks outcropping between Campbellton, New Brunswick and Miguasha, Quebec are regrouped on the basis of new stratigraphic information and the ages now suggested are thought to be in accord with new data. An Early or early Middle
B. P. J. Williams, D. L. Dineley
core   +1 more source

Geochemistry of organic matter in carbonate Devonian sediments of the South Tatar arch

open access: yesGeoresursy
The article deals with the lithology and geochemistry of organic matter of Upper Devonian-Lower Carboniferous deposits (Carbonate Devonian) of the eastern part of the South Tatar arch.
A. Yu. Orlova   +5 more
doaj   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Lower Devonian Brachiopods from the Fukuji Formation, Central Japan [PDF]

open access: yes, 1977
The Lower Devonian brachiopod fauna is described for the first time in Japan. The faunal content of the Fukuji Formation indicates a certain degree of endemism.
Ohno, Terufumi
core  

First insights into the Devonian–Carboniferous boundary conodonts from the depression deposits of the Kama-Kinel Trough System, East European Platform (Volga-Ural petroleum province, Sarailinskaya Depression)

open access: yesУчёные записки Казанского университета: Серия Естественные науки
Conodonts 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
doaj   +1 more source

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