Results 101 to 110 of about 115,378 (317)

Expedition 302 summary [PDF]

, 2006
The first scientific drilling expedition to the central Arctic Ocean was completed in September 2004. Integrated Ocean Drilling Program Expedition 302, Arctic Coring Expedition (ACEX), recovered sediment cores to 428 meters below seafloor (mbsf) in water
Backman, Jan, Mayer, Larry A., Moran, Kathryn   +2 more
core   +2 more sources

Depositional Facies, Sequence Stratigraphy, and Diagenesis of Lower Cretaceous Carbonate Reservoir, Southern Iraq: Implications for Petroleum Exploration

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed, F. Velledits, I. Q. Mohammed, M. Alsuwaidi, H. Mansurbeg, F. Kristály, D. K. Ivanova, Eloi González‐Esvertit, A. Awdal   +8 more
wiley   +1 more source

Inorganic geochemical attributes of Jaintia Hills coals, India: Implications for paleo-depositional conditions

Kuwait Journal of Science
The Paleogene coal deposits of the Jaintia Hills of Meghalaya have undergone examinations by various researchers, primarily focusing on organic petrography and geochemistry and highlighting the rank, type, and grade, with perspectives on potential ...
Srivastava M.K., Kishor K., Nath M.
doaj   +1 more source

The most complete amiid fish from the Coal Creek Member of the Eocene Kishenehn Formation in northwestern Montana

Acta Palaeontologica Polonica, 2022
The larger-bodied fish fauna of the Kishenehn Formation’s Coal Creek Member (Eocene, 43.5 Ma), northwestern Montana, is understudied because of a sampling bias towards small specimens. Small specimens (
JACOB D. GARDNER, MARK V.H. WILSON
doaj   +1 more source

Gigantism in unique biogenic magnetite at the Paleocene-Eocene Thermal Maximum [PDF]

, 2008
We report the discovery of exceptionally large biogenic magnetite crystals in clay-rich sediments spanning the Paleocene-Eocene Thermal Maximum (PETM) in a borehole at Ancora, New Jersey. Aside from previously-described abundant bacterial magnetofossils,
Guerquin-Kern, Jean-Luc, Hesse, Reinhard, Kirschvink, Joseph L., Kopp, Robert E., Lücken, Uwe, Raub, Timothy D., Rouiller, Isabelle, Schumann, Dirk, Sears, S. Kelly, Smirnov, Aleksey V., Tikoo, Sonia M., Vali, Hojatollah, Wu, Ting-Di   +12 more
core   +2 more sources

Geochemical and Seismic Constraints on the Role of Mud Diapirs in Petroleum Migration and Accumulation in the Recôncavo Basin, NE Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT In the Recôncavo Basin, Northeast of Brazil, mud diapirs have been reported for decades, but their role within the basin's petroleum system remains poorly constrained. Here, we combine 2D seismic interpretation, field observations, and organic geochemical analyses of rocks and oil seeps to investigate the relationship between diapirism and ...
Cora Mattos, Egberto Pereira, Lucas Pinto Heckert Bastos, René Rodrigues   +3 more
wiley   +1 more source

Divergent defense strategies and niche partitioning in Cretaceous micro‐beetles

Journal of Systematics and Evolution, EarlyView.
We report a new clambid beetle from mid‐Cretaceous Kachin amber, Scutacalyptus kolibaci gen. et sp. nov., characterized by a flattened body and explanate margins. Alongside spiny and conglobating clambid forms, this diversity reflects niche partitioning and varied antipredator strategies in the Cretaceous forest floor.
Yan‑Da Li, Zhi‐Hao Qi, Di‑Ying Huang, Chen‑Yang Cai   +3 more
wiley   +1 more source

THE FIRST RECORD OF NEMKOVELLA DAGUINI (NEUMANN, 1958) FROM THE MIDDLE-UPPER EOCENE OF OMAN (ARABIAN PENINSULA) AND MEGHALAYA (INDIAN SUBCONTINENT) AND ITS SIGNIFICANCE IN TETHYAN CORRELATIONS AND PALEOBIOGEOGRAPHY

Rivista Italiana di Paleontologia e Stratigrafia, 2018
Nemkovella daguini (Neumann, 1958) is a small-sized orthophragminid species previously reported from the Lutetian to lower Priabonian shelf deposits of the peri-Mediterranean region (Western Tethys).
ERCAN ÖZCAN, SADIKCAN ERBAY, İFTIKHAR AHMED ABBASI, CHRISTER DOMINIQUE PEREIRA, LEVENT SINA ERKIZAN, SIBEL KAYĞILI   +5 more
doaj   +1 more source

Mesozoic-Cenozoic mafic magmatism in Sanandaj-Sirjan Zone, Zagros Orogen (Western Iran): geochemical and isotopic inferences from Middle Jurassic and Late Eocene gabbros [PDF]

, 2017
One of the consequences of Neo-Tethys ocean subduction beneath the Central Iranian Micro-continent (CIMC) is the development of rare gabbroic intrusions in the Malayer-Boroujerd Plutonic Complex (MBPC) located in the Sanandaj-Sirjan Zone (SaSZ) of the ...
Deevsalar, Reza, Ghaderi, Majid, Hoskin, P.W.O., Lee, Hao Yang, Murata, Mamoru, Neill, Iain, Oshiro, Shoma, Shinjo, Ryuichi, Wang, Kuo-Lung   +8 more
core   +1 more source

Evolutionary legacies structure the geography of seagrass traits across the world's oceans

New Phytologist, EarlyView.
Summary Traits modulate species' ability to track shifts in climate, yet the extent to which traits have been shaped by the contemporary environment and/or historical processes remains poorly understood. Here, we fill this gap for the world's seagrasses, habitat‐forming species that provide critical ecosystem services.
Nestor E. Bosch, Matthew McLean, Fernando Tuya   +2 more
wiley   +1 more source