Results 51 to 60 of about 61,318 (247)

Biostratigraphic and magnetostratigraphic synthesis of the Celebes and Sulu Seas, Leg 124 [PDF]

, 1991
During ODP Leg 124, late middle Eocene to Quaternary sediment sequences were recovered from 13 holes drilled at five sites in the Celebes and Sulu basins. Paleomagnetic measurements and biostratigraphic studies using calcareous nannofossils, planktonic
Hsu, V., Kaminski, M.A., Merrill, D., Müller, C.M., Nederbragt, A.J., Scherer, R.P., Shibuya, H., Shyu, J.-P.   +7 more
core   +1 more source

Tracing the origins and evolution of nymphalid butterflies (Lepidoptera) in the Atlantic Forest

Ecography, EarlyView.
Understanding the relative roles of diversification and dispersal is key to explaining large‐scale biogeographical patterns. Although both processes are known to shape biodiversity, their relative contributions remain understudied for many organisms. Here, we examine how these processes have jointly contributed to the exceptional diversity and endemism
Mar Repullés, Nicolas Chazot, Leidys Murillo‐ Ramos, Marianne Espeland, Karina Lucas Silva‐ Brandão, Alexandre Antonelli, André Victor Lucci Freitas, Pável Matos‐Maraví   +7 more
wiley   +1 more source

Development model and exploration practice of fault-lithologic composite traps in Oligocene Weizhou Formation, Weixinan Sag, Beibuwan Basin

Shiyou shiyan dizhi
In order to address the challenges related to exploration target search and sustainable development of oilfields in the Weixinan Sag of Beibuwan Basin, this study focused on fault-lithologic composite traps within the structural trap development section ...
Desheng HU, Wenzhao SUN, Xiao MAN, Kui CHEN, Lijun CHEN, Liyuan GONG, Shanshan LI   +6 more
doaj   +1 more source

Catalogue of the Hantken collection: carbonate microfacies photographs from 1872-82 [PDF]

, 1996
Maximilian Hantken (1821-1893), founding professor of the Department of Palaeontology at Budapest University, was a pioneer in stratigraphic micropalaeontological studies.
Kázmér, Miklós
core  

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Exceptionally preserved Oligocene emperor butterfly from France provides a new calibration point for Apaturinae evolution

Acta Palaeontologica Polonica
A new genus and species of emperor butterfly (Nymphalidae, Apaturinae) is described based on an exceptionally well-preserved specimen from the “Calcaire de Campagne Calavon” limestone of southern France (early Oligocene age, approximately 34–28 Mya ...
Hossein Rajaei, Torsten Wappler, Rienk De Jong, Niklas Wahlberg, Michael S. Engel   +4 more
doaj   +1 more source

Microbiological Hazards Associated with the Use of Oligocene Waters: A Study of Water Intakes in Warsaw, Poland

Microorganisms, 2023
Oligocene waters are widely recognized as excellent sources of drinking water. Due to the belief in their good quality, the water from Oligocene intakes in Warsaw, Poland, is made available to users without prior treatment or disinfection.
Ewa Karwowska, Ewa Miaśkiewicz-Pęska, Katarzyna Gołębiewska, Paulina Tomaszewska   +3 more
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

The Agulhas Ridge, South Atlantic: the peculiar structure of a fracture zone [PDF]

, 2005
The Agulhas Ridge is a prominent topographic feature that parallels the Agulhas-Falkland Fracture Zone (AFFZ). Seismic reflection and wide angle/refraction data have led to the classification of this feature as a transverse ridge.
Gohl, Karsten, Uenzelmann-Neben, Gabriele   +1 more
core   +1 more source

Biogeography and diversification patterns in the Irano‐Turanian biodiversity hotspots inferred from a molecular phylogeny of the subendemic Iris subgenus Scorpiris (Iridaceae)

Nordic Journal of Botany, EarlyView.
The Irano‐Turanian Floristic Region harbors a rich flora, but our understanding of the development of this diversity is limited by a lack of data on phylogenetic relationships and biogeographic patterns of endemic and more widespread plants. Hypotheses of in situ diversification versus allopatric diversification were tested using Iris subgen. Scorpiris,
Mona Salimbahrami, Hojjatollah Saeidi, Ali Bagheri, Carol A. Wilson, Gerald M. Schneeweiss   +4 more
wiley   +1 more source