Comprehensive evaluation of the Paleogene lacustrine source rocks within the Bodong Sag, Bohai Bay Basin using kinetics-based petroleum system modeling by Xinyu Yan, Zhenliang Wang, Deying Wang, Feilong Wang, Rongtao Chen, Kuaile Zhang, Xiangnan Yin

“…The E 2 s 3 and E 3 s 1 source rocks matured early, entering the oil window in the Early Oligocene (∼30.3 Ma) and Middle Oligocene (∼28 Ma), respectively, and are currently in the wet gas to dry gas stage. …”
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Late Cenozoic sea-surface-temperature evolution of the South Atlantic Ocean by F. S. Hoem, A. López-Quirós, A. López-Quirós, S. van de Lagemaat, J. Etourneau, J. Etourneau, M.-A. Sicre, C. Escutia, H. Brinkhuis, H. Brinkhuis, F. Peterse, F. Sangiorgi, P. K. Bijl

“…Apparently, maximum Oligocene Antarctic ice volume could coexist with warm ice-proximal surface ocean conditions, while at similar ocean temperatures, the Middle Miocene Antarctic ice sheet was likely reduced. …”
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INTEGRATED HIGH-RESOLUTION STRATIGRAPHY OF THE LOWER OLIGOCENETUSA TUFFITE FORMATION IN THE CALABRO-LUCANO AREAAND SICILY (SOUTHERN ITALY) by LUCA BARUFFINI, FABIO LOTTAROLI, STEFANO TORRICELLI

“…In this framework, we suggest that a single regional event of rise and erosion of a volcanic arc occurred in the Alps/Apennines orogenic system during the Early Oligocene.…”
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Evolution of Asian Interior Arid-Zone Biota: Evidence from the Diversification of Asian Zygophyllum (Zygophyllaceae). by Sheng-Dan Wu, Li Lin, Hong-Lei Li, Sheng-Xiang Yu, Lin-Jing Zhang, Wei Wang

“…Combining diversification patterns of other important components of the Asian interior arid zone, we propose a multi-stage evolution model for this biota: the late Eocene-early Oligocene origin, the early Miocene expansion, and the middle-late Miocene rapid expansion to the whole Asian interior arid zone. …”
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Spatial- temporal relationship of mineralization and magmatism in the Mazraeh polymetallic deposit (north of Ahar, Eastern Azarbaijan province) by Hemayat Jamali

“…Skarn mineralization, which mainly consists of garnet, epidote, magnetite, pyrite, and chalcopyrite, occurred in the Upper Cretaceous limestones, while veinlet-disseminated mineralization occurred in both the Miocene subvolcanic and the Oligocene coarse-grained bodies, and is associated with weak potassic and phyllic alterations.…”
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Equatorial heat accumulation as a long-term trigger of permanent Antarctic ice sheets during the Cenozoic by Tremblin, M, Hermoso, M, Minoletti, F

“…Growth of the first permanent Antarctic ice sheets at the Eocene−Oligocene Transition (EOT), ∼33.7 million years ago, indicates a major climate shift within long-term Cenozoic cooling. …”

STRATIGRAFIA SEQUENZIALE DELLA SUCCESSIONE OLIGO-MIOCENICA DELLE LANGHE, BACINO TERZIARIO LIGURE-PIEMONTESE by ROMANO GELATI, MARIO GNACCOLINI, PAOLO FALLETTI, DONATA CATRULLO

“…Two depositional sequences (Early Oligocene; locally Late Eocene?) characterize this group. …”
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Biostratigraphic correlation of the western and eastern margins of the Labrador–Baffin Seaway and implications for the regional geology. Fig. 5 by Henrik Nøhr-Hansen, Graham L. Williams, Robert A. Fensome

“…Detailed biostratigraphic evidence has confirmed the following hiatuses: pre-Aptian in the Hopedale Basin; pre-Albian in the Saglek Basin; Albian–Turonian in some wells of the Hopedale Basin; Turonian–Santonian/Campanian in some areas; pre-Campanian and late Campanian – Thanetian on the Greenland Margin; late Maastrichtian and Danian in some wells of the Hopedale Basin and in the Saglek Basin; Selandian in part of the Hopedale Basin, in all the Saglek Basin wells and in two wells on the West Greenland Margin; late Ypresian and/or Lutetian on both sides; Oligocene to middle Miocene of considerable variability on both margins, with all of the Oligocene and the lower Miocene missing in all the West Greenland Margin wells; and middle to late Miocene on the western side. …”
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Hydrocarbon Generation History of Tertiary Source Rocks in Phu Khanh Basin, Offshore Vietnam by Huy Xuan Nguyen, Trang Thi Thu Nguyen, Van Nguyen Nguyen, Thi Hong Quyen Vo

“…The Oligocene source rock is derived from the lacustrine environment; it is mature to overmature in the Southwest part of the Phu Yen Depression. …”
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Phylogeography of the Subgenus Drosophila (Diptera: Drosophilidae): Evolutionary History of Faunal Divergence between the Old and the New Worlds. by Hiroyuki F Izumitani, Yohei Kusaka, Shigeyuki Koshikawa, Masanori J Toda, Toru Katoh

“…However, our results also indicate that these events took place multiple times over a wider time range than Throckmorton proposed, from the late Oligocene to the Pliocene.…”
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SEDIMENTS IN THE TERTIARY TANKHOI FIELD, SOUTH BAIKAL BASIN: STRATIGRAPHY, CORRELATION AND STRUCTURAL TRANSFORMATIONS IN THE BAIKAL REGION by S. V. Rasskazov, N. A. Lyamina, I. V. Luzina, G. P. Chernyaeva, I. S. Chuvashova, M. V. Usoltseva

“…Biostratigraphic and lithofacial studies of sediments in the Tankhoi Tertiary field, which evolution reflects transformations of the terrain in the Baikal region at the Oligocene-Miocene, Early-Middle Miocene, Miocene-Pliocene and Early-Late Pliocene transitions. …”
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Stratigraphy and Sedimentary environment of Asmari Formation in Moshkan section, South east Yasuj by reza sadeghi, khalil forouzandeh, Mahin Mohammadi

“…Abstract: The present research studies sedimentary succession of Oligocene Asmari Formation at Tang-e Moshkan stratigraphic section aimed at evaluating lithostratigraphy, biostratigraphy and determining microfacies, microfacies class, sub-environments, and sedimentary environment. …”
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SYNSEDIMENTARY TECTONICS AND SEDIMENTATION IN THE TERTIARY PIEDMONT BASIN, NORTHWESTERN ITALY by ROMANO GELATI, MARIO GNACCOLINI, MARIA ROSE PETRIZZO

“…The Late Oligocene/Early Miocene tectonic and sedimentary evolution of the eastern sector of the Langhe Sub-Basin (Teriary Piedmont Basin) is proposed and discussed. …”
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THE STRATIGRAPHIC RECORD OF NEOGENE EVENTS IN THE TIRANA DEPRESSION by ROMANO GELATI, FOTOQ DIAMANTI, JOVAN PRENCE, HECTOR CANE

“…Deep-marine sediments are limited to the Oligocene-earliest Miocene and Serravallian-Tortonian p.p., and crop out only along the western margin of the Tirana Depression.The sequence was compared with the Langhian-Tortonian foredeep succession of the Preze homocline,which belongs to the Periadriatic Depression.The Tirana Depression differs from the Periadriatic Depression in the following developmental steps: during the late Oligocene-Aquitanian it can be considered as a narrow unstable shelf, probably forming the eastern margin of the foredeeps; during Burdigalian -early Serravallian time, it behaved as a "thrust sheet top basin", related to the front of west-vergin Dinaric thrust; during the Serravallian-Tortonian it played the role of foreland zone of the backthrust, whose ultimate enucleation is post-Pliocene in age.…”
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Discrimination Reef and Non-Reef Environments, Using REE Geochemistry by Farah Turki, Salih Awadh

“… This research aims to distinguish the reef environment from the non-reef environment. The Oligocene-Miocene-succussion in western Iraq was selected as a case study, represented by the reefal limestone facies of the Anah Formation (Late Oligocene) deposited in reef-back reef environments, dolomitic limestone of the Euphrates Formation (Early Miocene) deposited in open sea environments, and gypsiferous marly limestone of the Fatha Formation (Middle Miocene) deposited in a lagoonal environment. …”
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Stratigraphy and Sedimentary environment of Asmari Formation in Moshkan section, South east Yasuj by khalil forouzandeh, reza sadeghi, Mahin Mohammadi

“…Abstract: The present research studies sedimentary succession of Oligocene Asmari Formation at Tang-e Moshkan stratigraphic section aimed at evaluating lithostratigraphy, biostratigraphy and determining microfacies, microfacies class, sub-environments, and sedimentary environment. …”
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Locomotor behavior and hearing sensitivity in an early lagomorph reconstructed from the bony labyrinth by Sergi López‐Torres, Raj Bhagat, Ornella C. Bertrand, Mary T. Silcox, Łucja Fostowicz‐Frelik

“…Here, we reconstructed the agility and hearing sensitivity of the stem lagomorph Megalagus turgidus from the early Oligocene of the Brule Formation of Nebraska (USA). …”
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An appraisal for the petroleum source rocks on oil seep and rock samples of the Tertiary Seblat and Lemau Formations, Bengkulu Basin by Hermes Panggabean, R. Heryanto

“…The basin initiated during Eocene-Oligocene times, accumulates the Lahat equivalent formation. …”
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Middle–Late Cenozoic Stepwise Deformation Propagation in Eastern Tibet by Yaling Tao, Huiping Zhang, Xudong Zhao, Ying Wang, Zifa Ma

“…The results revealed two rapid cooling pulses in the Late Oligocene (∼24 Ma, 50°C/m.y.) and the Middle Miocene (17–14 Ma, 35 °C/m.y.), respectively, which we ascribe to the staged‐thrusting faulting of this belt. …”
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Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Burial and exhumation history of the Jameson La... by Paul F. Green, Peter Japsen

“…The results are consistent with estimates of rock uplift on Milne Land since the late Eocene and with interpretation of Ocean Drilling Program (ODP) data off South-East Greenland suggesting that mid-Cenozoic uplift of the margin triggered the marked influx of coarse clastic turbidites during the late Oligocene above a middle Eocene to upper Oligocene hiatus.…”
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