Results 31 to 40 of about 26,837 (264)

Revision of species Plagiolophus sulcatus Beurlen, 1939 (Decapoda, Brachyura) from the Oligocene of Hungary and Slovenia

Geologija, 2020
The crab species Plagiolophus sulcatus Beurlen, 1939 from the Oligocene (Rupelian) Kiscell Clay of Hungary is revised and its holotype is reillustrated for the first time since its original publication.
Matúš HYŽNÝ, Rok GAŠPARIČ, Alfréd DULAI   +2 more
doaj   +1 more source

Temperate Oligocene surface ocean conditions offshore of Cape Adare, Ross Sea, Antarctica [PDF]

Climate of the Past, 2021
Antarctic continental ice masses fluctuated considerably during the Oligocene “coolhouse”, at elevated atmospheric CO2 concentrations of ∼600–800 ppm. To assess the role of the ocean in the Oligocene ice sheet variability, reconstruction of past ocean ...
F. S. Hoem, L. Valero, D. Evangelinos, C. Escutia, B. Duncan, R. M. McKay, H. Brinkhuis, H. Brinkhuis, F. Sangiorgi, P. K. Bijl   +9 more
doaj   +1 more source

Pacific Equatorial Transect [PDF]

, 2009
Integrated Ocean Drilling Program Expedition 320/321, "Pacific Equatorial Age Transect" (Sites U1331–U1338), was designed to recover a continuous Cenozoic record of the paleoequatorial Pacific by coring above the paleoposition of the Equator at ...
Isabella, Raffi, M. Lyle, H. Pälike, Edgar, Kirsty; id_orcid, Gamage, Kusali, Lyle, Mitch, Raffi, Isabella, ?, ?, Edgar, Kirsty M, A. Klaus, K. Gamage, H. Nishi, Klaus, Adam, Pälike, Heiko, Lyle, Mitchell, Nishi, Hiroshi, scientists, Expedition 320/321, I. Raffi   +17 more
core   +1 more source

Borealodon osedax, a new stem mysticete (Mammalia, Cetacea) from the Oligocene of Washington State and its implications for fossil whale-fall communities [PDF]

Royal Society Open Science, 2019
Baleen whales (mysticetes) lack teeth as adults and instead filter feed using keratinous baleen plates. They do not echolocate with ultrasonic frequencies like toothed whales but are instead known for infrasonic acoustics.
B. K. Shipps, Carlos Mauricio Peredo, Nicholas D. Pyenson   +2 more
doaj   +1 more source

Oligocene deep-water agglutinated foraminifers at Site 985, Norwegian Basin, southern Norwegian Sea [PDF]

, 1999
The stratigraphic distribution of deep-water agglutinated foraminifers was examined using 50 samples from Ocean Drilling Program (ODP) Hole 985A, drilled on the gentle slope of the Iceland Plateau in the Norwegian Basin. A total of 40 species and generic
M.A. Kaminski, Kaminski, M.A., Kaminski, MA, W.E.N. Austin, Austin, William Edward Newns, Austin, W.E.N.   +5 more
core   +1 more source

Oxygen isotopic paleotemperatures across the Runangan—Whaingaroan (Eocene—Oligocene) boundary in a New Zealand shelf sequence

, 1981
Oxygen isotopic compositions of the tests of mainly benthic foraminifera, from sections of conformable Late Eocene (Runangan) to Early Oligocene (Whaingaroan) shelf mudstones, at both Cape Foulwind and Port Elizabeth, western South Island, indicate. that
Nelson, Campbell S., Burns, David A.
core   +1 more source

Leg 199 summary [PDF]

, 2002
Ocean Drilling Program (ODP) Leg 199, "The Paleogene Equatorial Transect" (Sites 1215-1222), was designed to study the evolution of the equatorial Pacific current and wind system as Earth went from maximum Cenozoic warmth to initial Antarctic glaciations.
Lyle, M., Vanden Berg, M.D., Quintin, L., Wilson, P.A., Backman, J., Pälike, H., Coxall, H.K., Janecek, T.R., Raffi, I., Moore, T.C., Nomura, R., Nigrini, C.A., Faul, K., Tripati, A.K., Parés, J.M., Rea, B.R., Kruse, S., Wade, B.S., Nishi, H., Lanci, L., Hovan, S.A., Lear, C.H., Gaillot, P.A., Knoop, P., Busch, W.H., Norris, R.D., Rea, D.K., Steiger, T.H.   +27 more
core   +1 more source

Petrology and geochemistry of volcanic and subvolcanic rocks in the south of Asagi igneous complex, northwest of Zahedan, Sistan Suture Zone [PDF]

پترولوژی
IntroductionThe Asagi igneous complex is located in the northwest of Zahedan city (Figure 1A) and is part of a southeast–northwest trending magmatic belt. The igneous rocks of this belt were formed during at least two distinct periods.
Mohammad Bameri, Reyhaneh Abbasi, Abdolreza Partabian   +2 more
doaj   +1 more source

Strontium isotope dating of the New Zealand Oligocene

, 2004
One of the least well resolved portions of the New Zealand Cenozoic time-scale is that centred on and about the Oligocene Epoch, internationally regarded as spanning c. 10 m.y. from 33.7 to 23.8 Ma.
Maxwell, P., Kamp, P.J.J., Nelson, Campbell S., Cooke, Steve, Campbell S. Nelson, Peter J. J. Kamp, Nelson, C.S., Maxwell, Phillip, Phillip Maxwell, Maas, R., Cooke, S., Lee, Daphne E., Kamp, Peter J.J., Daphne Lee, Lee, D., Steve Cooke, Maas, Roland, Roland Maas   +17 more
core   +1 more source

Provenance Response to Rifting and Separation at the Jan Mayen Microcontinent Margin

Geosciences, 2022
The Eocene-Miocene successions recovered at DSDP sites on the Jan Mayen Ridge (NE Atlantic) and on the adjacent East Greenland margin provide a sedimentary record of the rifting and separation of the Jan Mayen Microcontinent from East Greenland.
Andrew Morton, David W. Jolley, Adam G. Szulc, Andrew G. Whitham, Dominic P. Strogen, C. Mark Fanning, Sidney R. Hemming   +6 more
doaj   +1 more source