Results 21 to 30 of about 32,377 (248)

Devonian-Carboniferous palynoflora

, 2020
Palynomorph assemblages and palynofacies analysis have been performed on several core samples from the Devonian–Carboniferous deposits identified in five wells located in the eastern part of the Moesian Platform.
Daniel Tabara (8670849)
core   +2 more sources

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

Middle–Late Devonian conodont fauna of the Bahram Formation in the Shahzadeh Mohammad section, North of Kerman [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2021
Devonian deposits of the Bahram Formation with a thickness of 300 m were studied based on conodont fauna in Shahzadeh Mohammad section (33 km east of Zarand, 95 km north of Kerman city) in central Iran structural Zone.
Fattaneh Zamani, Mehdi Yazdi, Ali Bahrami, Hameh Ameri, Cathrin Girard, Claudia Spalletta   +5 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

Dolocretes in the uppermost Famennian to Mississippian siliciclastic deposits (Šķervelis Formation, Latvia) [PDF]

Estonian Journal of Earth Sciences, 2023
Siliciclastic deposits and dolostones of the Å Ä·ervelis Formation in southwestern Latvia were studied in outcrops, polished slabs, thin sections, and by geochemical methods, including stable isotope analyses.
Daiga Pipira, Lauma Ķeipāne, Ģirts Stinkulis, Ilze Vircava, Tõnu Martma   +4 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

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

Early Cenozoic Eurekan strain partitioning and decoupling in central Spitsbergen, Svalbard [PDF]

Solid Earth, 2021
The present study of field, petrological, exploration well, and seismic data describes backward-dipping duplexes comprised of phyllitic coal and bedding-parallel décollements and thrusts localized along lithological transitions in tectonically thickened ...
J.-B. P. Koehl, J.-B. P. Koehl, J.-B. P. Koehl, J.-B. P. Koehl   +3 more
doaj   +1 more source

The Early Devonian (Emsian) acrotretid microbrachiopod Opsiconidion minor Popov, 1981, from the Alaska/Yukon Territory border and Novaya Zemlya [PDF]

Estonian Journal of Earth Sciences, 2020
New records of the poorly known acrotretid (Biernatidae) microbrachiopod Opsiconidion minor Popov are described from middle Emsian strata of the Ogilvie Formation in east-central Alaska and the adjacent Yukon Territory, Canada, and compared with new ...
Lars E. Holmer, Robert B. Blodgett, Yue Liang, Zhifei Zhang   +3 more
doaj   +1 more source

Late Devonian (Frasnian–Famennian) palynomorphs from the Padeha and Bahram Formations of Shahzadeh Mohammad section, northwest of Kerman, Iran

Acta Palaeobotanica, 2022
A diverse and well-preserved microphytoplankton assemblage is reported from a measured section of Frasnian–Famennian (Upper Devonian) Padeha and Bahram Formations in Shahzadeh Mohammad area, northwestern Kerman, southeast Iran. The palynoflora assemblage
Roghayeh Rouzegar, Péter Ozsvárt
doaj   +1 more source