Results 31 to 40 of about 2,119,061 (274)

Stratigraphy and sedimentology of upper Devonian strata, Hay River, N.W.T. [PDF]

, 1987
Masters thesis describing the Upper Devonian strata in the Hay River area. Objectives of the study were: 1) to revise the stratigraphy of the Upper Devonian strata in the area around Hay River; 2) to provide a detailed analysis of the hardgrounds and ...
Hadley, Mark G.
core   +1 more source

Paleomagnetic studies of the Middle-Upper Devonian section of the Voronezh anteclise (Pavlov quarry) [PDF]

Нефтегазовая геология: Теория и практика, 2021
New paleomagnetic determinations are presented for a collection of rocks of the Middle-Upper Devonian (Givetian and Frasnian stages), sampled from an outcrop on the southwestern slope of the Pavlov granite quarry.
Iosifidi A.G., Popov V.V.
doaj  

Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China [PDF]

, 2004
Stromatolites occurred in many reef complexes throughout the Phanerozoic, and microbial communities played an important role in both ancient and modern stromatolite reefs.
Webb, GE, Webb, Gregory, Shen, Jian-Wei, Shen, Jian-We, Webb, Gregory E., Shen, JW   +5 more
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Conodont biostratigraphy and magnetic susceptibility of Upper Devonian Chattanooga Shale, eastern United States: Evidence for episodic deposition and disconformities

Palaeogeography, Palaeoclimatology, Palaeoecology, 2019
Recognition of stratigraphic hiatuses in fine-grained siliciclastic sedimentary rocks can be challenging but is feasible using high-resolution biostratigraphic and chemostratigraphic data within a regional correlation framework. In this case study of the
D. Over, E. Hauf, J. Wallace, J. Chiarello, Jin‐Si R. Over, G. Gilleaudeau, Yi Song, T. Algeo   +7 more
semanticscholar   +1 more source

Comparison among related Middle-Upper Devonian lycopsids from China. [PDF]

, 2018
Comparison among related Middle-Upper Devonian lycopsids from China.
Li Cheng-Sen (5504234), Borja Cascales-Minana (5504240), Cyrille Prestianni (5504237), Philippe Steemans (2842331), Philippe Gerrienne (3714262)   +4 more
core   +1 more source

Facies-succession and architecture of the third-order sequences and their stratigraphic framework of the Devonian in Yunnan-Guizhou-Guangxi area, South China

Journal of Palaeogeography, 2013
The Caledonian orogeny at the end of the Silurian resulted in great changes in the palaeogeography in the Yunnan-Guizhou-Guangxi area of South China; the continental area of the Early Paleozoic evolved into the extensive Dian-Qian-Gui Sea in the Late ...
Mei Mingxiang, Maurice E. Tucker
doaj   +1 more source

Indigenous demosponge spicules in a Late Devonian stromatoporoid basal skeleton from the Frasnian of Belgium [PDF]

, 2014
peer ...
Kershaw, S, Reitner, J., Reynolds, A., Hubert, M, Reynolds, Alan, Mistiaen, Bruno, Boulvain, F., Benoit L. M. Hubert, Boulvain, F, Stephen Kershaw, Hubert, B.L.M., Reynolds, A, Alan Reynolds, Da Silva, A-C, Mistiaen, B, Boulvain, Frédéric, Bruno Mistiaen, Hubert, Benoit L. M., Frédéric Boulvain, Kershaw, Stephen, Anne-Christine Da Silva, Da Silva, A.-C., Reitner, J, Joachim Reitner, Da Silva, Anne-Christine, Hubert, BLM, Reitner, Joachim   +26 more
core   +1 more source

Structure and mineralogical composition of the tuff horizon of Petrikov potash deposit

Журнал Белорусского государственного университета: География, геология, 2019
Integrated data of the structure and mineralogical composition of the marking tuff horizon in the Upper-Devonian bed of the North-Shestovich synclinal zone are presented in this paper.
Vladimir P. Samodurov, Anatoly I. Druk, Konstantin Yu. Balashov, Yuriy N. Yalenski   +3 more
doaj   +1 more source

On the upper limits of the Devonian System [PDF]

Proceedings of the Geologists' Association, 1870
n ...
openaire   +1 more source

Upper Devonian to Permian

, 1997
The Upper Devonian and Carboniferous comprise a southern and a northern succession separated by the Ancestral Aklavik Arch. The southern succession, deposited in the Mackenzie Basin and the Prophet Trough, consists of Frasnian to Gzhelian strata. The northern succession comprises Viséan to Moscovian strata that onlapped the Yukon Fold Belt from the ...
B C Richards, E W Bamber, J Utting
openaire   +1 more source