Results 71 to 80 of about 12,768 (231)

Palaeobiology of Silurian trilobites from North Greenland [PDF]

, 2010
The Telychian (Llandovery, Silurian) reefs of North Greenland yield extensive collections of diverse and remarkably well preserved trilobites. The collections comprise 36 named trilobite species (32 new), and 30 under open nomenclature.
Hughes, Helen Elizabeth
core  

Detrital provenance evolution of the Ediacaran-Silurian Nanhua foreland basin, South China

, 2014
We report here in-situ U–Pb and Hf isotopic results of detrital zircons from sixteen Cambrian–Silurian siliciclastic samples across the Nanhua foreland basin, South China.
Li, Zheng-Xiang, Yang, J., Su, Li, Li, W., Yao, Weihua, Yao, Wei-Hua, Li, Wu-Xian, Yang, Jin-Hui, Su, L.   +8 more
core   +1 more source

Acritarchs of Llandeilo and Caradoo age from classic localities in Britain. [PDF]

, 1979
The last two decades have seen the publication of a large number of papers dealing with Palaeozoic acritarchs including many devoted to the description of Ordovician assemblages.
Turner, Robert Eric
core  

New results of paleomagnetic studies of red-colored Silurian deposits

Геофизический журнал, 2014
New results of paleomagnetic studies of red-colored rocks of the Late Silurian of southwestern Ukraine (Podolian area, the Dniester river basin) have been presented.
E. Polyachenko, V. Bakhmutov, L. Konstantinenko, M. Teyser-Elenska, M. Kadzyalko-Hofmokl', T. Scarboviychuk, V. Yakukhno   +6 more
doaj   +1 more source

Comparative Ionomics of Lycopodiaceae and Selaginellaceae Across Diverse Soil Types in Japan

Ecological Research, Volume 41, Issue 4, July 2026.
We conducted a comparative ionomic analysis of Lycopodiaceae and Selaginellaceae collected from diverse soil types in Japan, including serpentine soils and solfatara fields, to examine how evolutionary lineage and soil environment shape elemental composition in lycophytes.
Akinori Ren, Asuka Saisako, Takato Saito, Akihiro Yamamoto, Soshi Osaki, Akari Matsumoto, Daisuke Aoshima, Hirotsuna Yamada, Takayuki Nakatsubo, Toshihiro Watanabe, Hayato Maruyama, Takuro Shinano, Jun Wasaki   +12 more
wiley   +1 more source

Silurian stratigraphy of Central Iran – an update [PDF]

, 2017
The Silurian biostratigraphy, lithostratigraphy, and facies of Central Iran including the Kashmar (Boghu Mountains), Tabas (Derenjal Mountains, Ozbak-Kuh), Anarak (Pol-e Khavand) and Kerman regions is re-viewed and updated. The current state of knowledge
Mansoureh Ghobadi Pour, Hairapetian, V., C. Giles Miller, Miller, C. G., Popov, L. E., Ghobadi Pour, M., Vachik Hairapetian, Hairapetian, V, Leonid E. Popov, Männik, P., Pour, MG, Popov, LE, Peep Männik, Miller, CG, Männik, P   +14 more
core   +1 more source

Fracture characteristics and stress disturbance analysis for well optimization of Silurian in Shunbei area, central Tarim Basin

Shiyou shiyan dizhi
The complex tectonic stress in the Shunbei area of the central Tarim Basin results in varied patterns of multilayered fractures. When drilling into the Silurian fracture zone and the formation pressure is lower than the drilling fluid column pressure ...
Laiyuan WANG, Cheng HUANG, Wei GONG, Wenlong DING, Zhan ZHAO   +4 more
doaj   +1 more source

The Silurian Cephalopoda [PDF]

Proceedings of the Geologists' Association, 1904
n ...
openaire   +1 more source

Hyperspectral Fingerprinting of Dune Sediments Across the Arabian Peninsula: Insights Into Sediment Provenance and Transport Pathways From NASA's EMIT Data

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The Arabian Peninsula encompasses one of the world's most extensive aeolian systems, yet the provenance and transport history of its dune sediments are not well understood. Using hyperspectral data from NASA's Earth Surface Mineral Dust Source Investigation (EMIT), we mapped mineral compositions and abundance patterns across dune fields and ...
Ahmed Alshakr, Mohamed Sultan, Mustafa Kemal Emil, Hassan Alharbi, Fahad Alshehri, Abdullah A. Alotaibi, Abdullah T. Mohammad, Aylin Yildirim, Neil C. Sturchio   +8 more
wiley   +1 more source

Silurian and Devonian source rocks and crude oils from the western part of Libya: Organic geochemistry, palynology and carbon stratigraphy

, 2015
The Early Silurian “hot” shales and Late Devonian black shales are major regional oil and gas source rocks in North Africa. Their deposition probably played a major role in global carbon cycling in general because of the large areas of the ocean affected.
Elkelani, Mohamed M.A., Organic geochemistry and compound specific stable isotopes of the Libyan Silurian: depositional environment, carbon cycling and global impact, Organic geochemistry   +2 more
core