Results 121 to 130 of about 8,694 (221)

Late Devonian magmatism in the Pripyat Palaeorift: a geodynamic model

open access: yes, 2001
Late Devonian magmatism in the Pripyat Trough, Belarus was associated with the development of the intraplate Pripyat-Donets Palaeorift. Magmatic rocks belong to an alkali-ultrabasic-alkali-basaltoid suite.
Beskopylny, V. N.   +3 more
core  

Archaeopteris trees at high southern latitudes in the late Devonian [PDF]

open access: yes
During the Devonian Period plants first reached forest stature, impacting chemical weathering of rocks, fluvial systems, atmospheric composition and possibly aquatic eutrophication.
Berry, Christopher, Gess, Robert W.
core   +1 more source

Newly found evidence of the Late Devonian extinction by microtektites in black shales: Sellersburg, Indiana, USA [PDF]

open access: yes
Our planet has experienced at least five major mass extinction events, which have occasionally brought the flora and fauna to almost complete collapse , yet they have been pivotal in the evolution of life as we know it.
Nedelchev, Emiliyan
core  

Groenlandaspidid placoderm fishes from the Late Devonian of North America

open access: yes, 2003
Daeschler, Edward B., Frumes, Anna C., Mullison, C. Frederick (2003): Groenlandaspidid Placoderm Fishes from the Late Devonian of North America. Records of the Australian Museum 55 (1): 45-60, DOI: 10.3853/j.0067-1975.55.2003.1374, URL: https://journals ...
C. Frederick Mullison   +8 more
core   +1 more source

Late Devonian red tide and mass extinction

open access: yesChinese Science Bulletin, 2002
Molecular stratigraphical, carbonate carbon isotopic, stratigraphical and paleontological data show that algal booming, eutrophication, anoxia, hypersalinity, positive δ13C excursion and biomass decreasing occurred in the offshore carbonate environments of the Frasnian-Famennian (F-F) transition, which hints that red tide might frequently take place in
openaire   +1 more source

Late Silurian and Early Devonian Sedimentologic History of Southwestern Indiana

open access: yes, 1978
"Evidence from geophysical logs and petrographic study of subsurface samples permits interpretation of the sequence of sedimentologic events during Late Silurian and Early Devonian time in southwestern Indiana.
Droste, John B., Becker, Leroy E.
core  

Late Devonian mineralisation, north Queensland: volcanic sources in sediments of the Palaeopacific Rim

open access: yes, 1987
A Devonian metallogenic province is extended northwards from central Queensland to the Burdekin Basin in the Charters Towers Gold and Mineral Field. Devonian sediments of the Burdekin Basin are intruded by mineralised quartz felspar porphyry which occurs
Heidecker, E. J.
core  

Proterozoic VanDieland in Central Victoria: ages, compositions and source depths for late devonian silicic magmas

open access: yes, 2019
The Proterozoic to Cambrian VanDieland microcontinent was accreted to mainland Australia at ca 400 Ma, and its northern tip, the Selwyn Block, forms the basement in central Victoria. Here, mainly Late Devonian, silicic magmas were derived from the Selwyn
J. D. Clemens (2842352)   +1 more
core   +1 more source

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