Results 51 to 60 of about 26,837 (264)

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

V.—British Oligocene ants [PDF]

Annals and Magazine of Natural History, 1920
xBio:D Automated ...
openaire   +2 more sources

Tapholyda caplani Oligocene

, 2022
Tapholyda caplani (Cockerell, 1933) (Figs 1–6) Material. Lectotype UCM 18623 (a nearly complete wasp) (Fig. 1). Another specimen UCM 19165 also has the label ‘Holotype’ in the collection database of the Museum of Natural History of Colorado (https://invertpaleosearch.
Jouault, Corentin, Wei, Mei-cai, Niu, Geng-yun, Nel, André   +3 more
openaire   +2 more sources

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

Geological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo, Won‐Ki Kim, Chul Woo Rhee, Seungyeol Lee   +3 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

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

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

Expedition 320/321 summary

, 2010
Integrated Ocean Drilling Program Expedition 320/321, "Pacific Equatorial Age Transect" (Sites U1331–U1338), was designed to recover a continuous Cenozoic record of the equatorial Pacific by coring above the paleoposition of the Equator at successive ...
Raffi, Isabella, Klaus, Adam, Edgar, Kirsty; id_orcid, Pälike, Heiko, Gamage, Kusali, Lyle, Mitchell, Nishi, Hiroshi   +6 more
core   +1 more source

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source