Results 1 to 10 of about 23,167 (204)

THE MIOCENE AND DEVONIAN MAGMATISM AT THE JUNCTION BETWEEN THE TUVA-MONGOLIAN MASSIF AND SIBERIAN CRATON: COMMON COMPONENT OF MANTLE SOURCES AND ITS ORIGIN

Геодинамика и тектонофизика, 2015
Devonian dikes of the Urik-Belaya and Shagayte-Gol-Urik zones and Miocene lavas of the Urik volcanic field are spatially associated with each other at the structural junction between the Neoproterozoic Tuva-Mongolian massif and Siberian craton.
Sergey V. Rasskazov, Aigul M. Il'yasova, Tatiana A. Yasnygina, Nikolay N. Fefelov   +3 more
doaj   +2 more sources

Devonian basaltic magmatism of Central Alborz: An evidence for Paleo- Tethys rifting [PDF]

پترولوژی, 2021
In the north east of Tehran province and in the Central Alborz zone, a thick basaltic horizon occurs at the boundary of Jeiroud and Mobarak Formations near the Jeiroud village and Darbandsar and Garmabdar areas, indicating a nonconformity boundary of ...
Amir Ali Tabbakh Shabani, Morteza Delavari Kooshan, Zahra Abdoli Arbat   +2 more
doaj   +1 more source

First record of conulariids from the Tērvete Formation, Upper Devonian of Latvia [PDF]

Estonian Journal of Earth Sciences, 2020
Phosphatized remains belonging to conulariids have been found in the Middle Famennian (Upper Devonian) deposits of the Tērvete Formation of Latvia for the first time.
Ervīns Lukševičs
doaj   +1 more source

Metallogenic regularity of strontium-rich drinking natural mineral water in Devonian carbonate area in southern Hunan: Taking strontium-rich drinking mineral water in Xinxu town, Xintian county as an example

Carsologica Sinica, 2022
The study area is located in Xinxu, Xintian county, the middle of southern Hunan, in which Devonian carbonate rocks are widely distributed in the south of N26°30'.
Xin ZHOU, Can WANG, Pengfei ZHENG, Tengfei YAO, Zhengqing WU, Maosheng MI, Zuohui QIN, Yang LI   +7 more
doaj   +1 more source

Geochemical characteristics and paleoenvironmental implications of carbonate rocks at the Givertian and Eifelian boundary in northeast Guangxi

Carsologica Sinica, 2023
The Devonian period, marking the initial phase of the Late Paleozoic era, has garnered considerable attention in recent decades. This heightened interest stems from its intricate climatic fluctuations, recurrent global shifts in sea levels, and a series ...
Shijie LIU, Qi GUAN, Ming PAN
doaj   +1 more source

Organic-walled tentaculids of Late Devonian (Frasnian) deposits of the Appalachian and Michigan Basins, Laurussia (NY, MI, OH)

Geologica Acta, 2022
This is the first report of organic-walled tentaculid remains from Givetian through Frasnian age deposits of the Michigan and Appalachian Basins in western Laurussia.
Kimberly C. Meehan, James T. Boyle
doaj   +1 more source

Devonian Tentaculitoids from Brazil: extinction and stratigraphic distribution

Terr@ Plural, 2021
The class Tentaculitoidea is an extinct group composed of small carbonate coniform-shaped invertebrates, distributed from Ordovician to Devonian. This group is more often recorded to the North Hemisphere, being less recorded to South Hemisphere deposits.
Jeanninny Carla Comniskey, Renato Pirani Ghilardi, Elvio Pinto Bosetti, Felipe Nascimento Sousa, Victor Rodrigues Ribeiro, Leonardo Borghi   +5 more
doaj   +1 more source

Palaeozoic correlations and the Palaeogeography of the Sibumasu (Shan-Thai) Terrane - a brief review [PDF]

Research & Knowledge, 2016
Furongian sandstones yield shallow-water trilobite faunas along the length of the Sibumasu Terrane in the four regions of NW Malaysia (Langkawi), southern Thailand (Satun), the Shan States of Myanmar and the Baoshan Block of western Yunnan.
Clive Burrett, Mongkol Udchachon, Hathaithip Thassanapak   +2 more
doaj   +1 more source

A new look at the Emsian (Early Devonian), sarcopterygian fishes from the Holy Cross Mountains, Poland, with a special reference to porolepiforms

Acta Palaeontologica Polonica, 2023
Sarcopterygian remains are relatively common in the so-called “Placoderm Sandstone” (storm-origin bone-bearing breccia) from the Emsian (Lower Devonian) of Podłazie in the Holy Cross Mountains (Poland).
OLGA WILK
doaj   +1 more source

New investigations of Upper Devonian wood from the north of the European part of Russia

Acta Palaeobotanica, 2020
The paper describes a continuation of our research on the distribution of archaeopteridalean plants in the north of the European part of the Russian Federation.
Anna Lyubarova, Sergey M. Snigirevsky
doaj   +1 more source