Results 21 to 30 of about 26,862 (257)

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

, 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

Strontium isotope dating of the New Zealand Oligocene [PDF]

, 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

New material of Epiaceratherium and a new species of Mesaceratherium clear up the phylogeny of early Rhinocerotidae (Perissodactyla) [PDF]

Royal Society Open Science, 2020
Reduction of the anterior dentition (i.e. incisors and canines) is a major adaptative trait of the Rhinocerotidae among Perissodactyla. However, the corresponding evolutionary sequence was lacking a robust phylogenetic frame to support it thus far. Here,
Jérémy Tissier, Pierre-Olivier Antoine, Damien Becker   +2 more
doaj   +1 more source

Correlation of Eocene-Oligocene marine and continental records: orbital cyclicity, magnetostratigraphy and sequence stratigraphy of the Solent Group, Isle of Wight, UK [PDF]

, 2006
The magnetostratigraphy, clay mineralogy, cyclostratigraphy and sequence stratigraphy of the estuarine and continental Solent Group (Isle of Wight, Hampshire Basin, UK), which is of Late Eocene–Early Oligocene age, were investigated.
Huggett, J.M., Gale, Andy, Huggett, J., Hailwood, E.A., Hardenbol, J., Laurie, E., Gale, A.S., Pälike, H., Hailwood, E.   +8 more
core   +1 more source

Paleovegetation and paleoclimate in the Baise Basin during Oligocene

地质科技通报, 2022
To reconstruct the palaeovegetation and palaeoclimate in the Baise Basin during the Oligocene, in this work, we analyzed sporopollen fossils from the Fuping Formation in this region.
Yi Wei, Bing Yang, Huijuan Deng
doaj   +1 more source

The Upper Oligocene of Montgat (Catalan Coastal Ranges, Spain) : new age constrains to the western Mediterranean Basin opening [PDF]

, 2007
The Oligocene deposits of Montgat are integrated in a small outcrop made up of Cenozoic and Mesozoic rocks located in the Garraf-Montnegre horst, close to the major Barcelona fault.
Madurell Malapeira, Joan, Gómez Gras, David Manuel, Agustí, Jordi, 1954-, Gómez-Gras, David, Agustí Segarra, Jordi, Roca, Eduard, Madurell-Malapeira, Joan, Parcerisa i Duocastella, David, Roca i Abella, Eduard, Roca Abella, Eduard, Parcerisa Duocastella, David, Agustí, Jordi   +11 more
core   +1 more source

Petrography and mineralogy of the Oligocene flysch in Ionian Zone, Albania: Implications for the evolution of sediment provenance and paleoenvironment

Open Geosciences, 2023
In this study, the reconstruction of the formation condition in the Oligocene flysch (Berati and Zhitomi section), in the Berati anticline structure, north-eastern part of the Ionian tectonic zone (Albania), is elucidated using petrographic–mineralogical
Fociro Ana, Fociro Oltion, Prifti Irakli, Muçi Redi, Pekmezi Jeton   +4 more
doaj   +1 more source

Petrogenesis of diachronous mixed siliciclastic-carbonate megafacies in the cool-water Oligocene Tikorangi Formation, Taranaki Basin, New Zealand [PDF]

, 2003
The Oligocene (Whaingaroan-Waitakian) Tikorangi Formation is a totally subsurface, lithostratigraphically complex, mixed siliciclastic-limestone-rich sequence forming an important fracture reservoir within Taranaki Basin, New Zealand.
Nelson, Campbell S., Hood, Steven D., Campbell S. Nelson, Kamp, Peter J.J., Steven D. Hood, Peter J. J. Kamp   +5 more
core   +1 more source

Paleoenvironmental features and ostracod investigation of Paleogene-Neogene sequences in Babaeski- Lüleburgaz- Muratlı-Çorlu region (Southeastern Thrace, Turkey)

Bulletin of the Mineral Research and Exploration, 2019
Aim of the study is to evaluate the Paleogene-Neogene sequences of Babaeski- Lüleburgaz- Muratlı-Çorlu (Southeastern Thrace, Turkey) region using the micropaleontological analysis on two borehole samples collected by Mineral Research and Exploration (MTA)
ÜMİT ŞAFAK
doaj   +1 more source

Biostratigraphy of the Oligocene deposits of Pabdeh Formation based on planktonic foraminifera in Bandar Abbas area [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2020
In this research, the biostratigraphy of Oligocene deposits of the Pabdeh Formation in Bandar Abbas region is considered. For this purpose, the planktonic foraminifera was studied and identified.
Jahanbakhash Daneshian, Mahboobeh Sadat Tabatabaei, Alireza Tahmasbi   +2 more
doaj   +1 more source