Results 91 to 100 of about 12,527 (229)

Stratigraphic palynology of Devonian boreholes from northern Saudi Arabia

open access: yesCarnets de Géologie, 2005
This extended abstract describes well-preserved palynomorph assemblages recovered from Devonian strata in five shallow boreholes in the northern part of Saudi Arabia.
Breuer Pierre   +5 more
doaj  

Integrated stratigraphy of the Waitakian-Otaian Stage boundary stratotype, Early Miocene, New Zealand

open access: yes, 1999
The base of the type section of the Otaian Stage at Bluecliffs, South Canterbury, is recognised as the stratotype for the boundary between the Waitakian and Otaian Stages.
G. H. Scott   +15 more
core   +1 more source

Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania:a standard for southern Scandinavia

open access: yes, 2014
The Rostanga-1 core from west-central Scania provides the most complete succession of the Sandbian (Upper Ordovician) through lower Telychian (Silurian, Llandovery) strata of southern Scandinavia. The Hirnantian is identified in the Kallholn Formation by
Ahlberg, Per   +4 more
core   +1 more source

Correlation and biostratigraphy of the Kortrijk (Sint-Antonius) and Kortrijk (Lust) boreholes (early Silurian, Belgium)

open access: yesCarnets de Géologie, 2005
Since their drilling, respectively in 1961 and 1971, the 83W421 Kortrijk (Sint-Antonius) and 83W44 Kortrijk (Lust brewery) boreholes have been studied rather extensively for biostratigraphical information.
Wauthoz Bastien
doaj  

The beginning of the age of mammals in the San Juan basin, New Mexico: Biostratigraphy and evolution of Paleocene mammals of the Nacimiento Formation

open access: yes, 1996
age of mammals; San Juan basin; New Mexico; biostratigraphy; evolution; Paleocene; Nacimiento ...
Thomas E. Williamson
core  

Biostratigraphic correlation of the western and eastern margins of the Labrador–Baffin Seaway and implications for the regional geology. Fig. 5 [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2016
New analyses of the palynological assemblages in 13 offshore wells on the Canadian margin and six on the West Greenland Margin, in conjunction with onshore data, have led to a new biostratigraphic framework for the Cretaceous–Cenozoic strata of the ...
Henrik Nøhr-Hansen   +2 more
doaj  

Quantitative foraminiferal and palynomorph biostratigraphy of the Paleogene in the southwestern Barents Sea

open access: yes, 2004
The stratigraphic distribution of both foraminifera and dinoflagellate cysts is recorded from the Paleocene to Eocene Torsk Formation in 12 petroleum exploration wells drilled in the southwestern Barents Sea.
Johnson, K. , K.   +3 more
core  

Chitinozoan dynamics and biostratigraphy in the Väo Formation (Darriwilian) of the Uuga Cliff, Pakri Peninsula, NW Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2010
The distribution of chitinozoans in the Väo Formation (Lasnamägi and Uhaku regional stages, Darriwilian) of the Uuga Cliff, Pakri Peninsula, NW Estonia, was investigated from 62 samples.
Tammekänd, Mairy   +2 more
doaj  

Biostratigraphy and Lithostratigraphy of the Middle Jurassic Tecocoyunca Group, Mexico

open access: yes, 1986
The Middle Jurassic Tecocoyunca Group of northeastern Guerrero, Mexico is situated on the allochthonous Mixteca tectostratiqraphic terrane. This group represents an overall transgressive trend with a few minor fluctuations of base level.
Marshall, Michael Cameron
core  

Diatom biostratigraphy and datum events of ODP Hole 183-1140A

open access: yes, 2003
Ocean Drilling Program (ODP) Leg 183 Site 1140 provided a lower Oligocene to middle Miocene record of diatom assemblages from the northern Kerguelen Plateau. Samples were examined to improve the resolution of shipboard diatom biostratigraphy.
Ladner, Bryan   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy