Results 31 to 40 of about 66,624 (345)

Shallow-water late middle Eocene crinoids from Tierra del Fuego: a new southern record of a retrograde community structure

open access: yesScientia Marina, 2005
One of the very few crinoid records in Patagonia is that of the abundant columnals of the genus Isselicrinus found in several localities in shallow marine, glauconitic sandstones of the Leticia Formation (upper middle Eocene of Tierra del Fuego Island ...
Norberto Malumián, Eduardo B. Olivero
doaj   +1 more source

Leg 199 summary [PDF]

open access: yes, 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.   +27 more
core   +1 more source

BULIMINELLOIDES: A NEW ROTALIID BENTHIC FORAMINIFERAL GENUS [PDF]

open access: yesActa Scientifica Malaysia
This study describes a new Eocene Rotaliid genus Buliminelloides from Alano section, NE Italy. It is characterized by an elongate subcylindrical triserial perforate calcareous test, chambers regularly triserial throughout, while the final chambers may ...
Haidar Salim Anan
doaj   +1 more source

Organic matter characteristics of Eocene source rocks with different lithologies in Baiyun Sag of Pearl River Mouth Basin and their geological significance

open access: yesShiyou shiyan dizhi
In the deep-water area of the Zhu Ⅱ Depression of the Pearl River Mouth Basin, the Baiyun Sag develops three types of source rocks: mudstone, carbonaceous mudstone, and coal.
Yue CHEN   +5 more
doaj   +1 more source

Trace fossils from the Buchak Formation (Lutetian, Eocene) of Luhansk Oblast, Ukraine, and their palaeogeographic significance

open access: yesGeo&Bio, 2023
Eleven Fodinichnia, Pascichnia, and Domichnia ichnotaxa (Apectoichnus longissimus (Kelly et Bromley, 1984), cf.Conichnus isp., Gastrochaenolites isp., Gnathichnus isp., Macaronichnus segregatis Clifton et Thompson, 1978,Ophiomorpha nodosa Lundgren, 1891 ...
Vitaly Dernov, Mykola Udovychenko
doaj   +1 more source

An analytical comparison of two commercial consolidating products applied to eocene sandstones from 16th and 19th century monuments in San Sehastián, northern Spain

open access: yesMateriales de Construccion, 2002
The conservation of buildings in the Basque Country made of Eocene sandstone is somewhat problematical, because this type of rock is relatively unstable.
F. García-Garmilla   +6 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]

open access: yes, 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.   +8 more
core   +1 more source

Biostratigraphic constraints for a Lutetian age of the Harrersdorf Unit (Rhenodanubian Zone): Implication for basement structure of the northern Vienna Basin (Austria)

open access: yesGeologica Carpathica, 2019
The formations underlying the Neogene infill of the Vienna Basin are still poorly documented. Until now correlation of subsurface lithostratigraphic units with those of the Rhenodanubian nappe system and the Magura nappe system, outcropping at the basin ...
Kranner Matthias   +4 more
doaj   +1 more source

Sespe Eocene Didelphids [PDF]

open access: yesProceedings of the National Academy of Sciences, 1936
In segregating a number of tiny insectivore and primate jaws from the Sespe deposits of California, several specimens were noted that clearly belong to marsupials. These are all incomplete but possess interest because they record didelphids for the first time in the North American upper Eocene and secondly because this group of mammals has not been ...
openaire   +3 more sources

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