Results 111 to 120 of about 9,423 (214)

Calcium isotopes link ocean acidification to Aptian–Albian foraminiferal extinctions

open access: yes
The second-largest extinction event in the evolutionary history of planktic foraminifera occurred at the Aptian–Albian boundary. This extinction may reflect ocean acidification (OA) associated with Oceanic Anoxic Event 1b. As calcium
Kenneth G. MacLeod   +7 more
core   +1 more source

The Trucíos-Somorrostro sedimentary trough (Lower Albian, N. Spain)

open access: yes, 1992
Detailed mapping and facies analysis of onshore Lower Albian sequences in the Trucfos-Somorrostro area led to the establishment of a major paleogeographic trough for the Lower Albian.
Aranburu Artano, Arantza   +3 more
core  

Depositional environment and source rock potential of Cenomanian and Turonian sedimentary rocks of the Tarfaya Basin, Southwest Morocco

open access: yesGeologica Acta, 2016
Detailed organic and inorganic geochemical analyses were used to assess the depositional environment and source rock potential of the Upper Albian to Turonian oil shale deposits in the Tarfaya Basin.
B.I. GHASSAL   +4 more
doaj  

A two-photon fluorescence micro-spectroscopy method for chemotaxonomic characterization of fossil resins. [PDF]

open access: yesAppl Plant Sci
McCoy VE   +6 more
europepmc   +1 more source

Mkuzeiella andersoni gen. et.nov.(Cephalopoda, Ammonoidea) from the Albian Mzinene Formation of KwaZulu-Natal, South Africa

open access: yes, 2008
In northern KwaZulu-Natal, numerous specimens of a new Albian heteromorph ammonite genus and species, Mkuzeiella andersoni, occur in the Mzinene Formation in association with abundant normally coiled middle Albian ammonite species, as well as the ...
Klinger, HC   +2 more
core  

Agathis vs. Hymenaea-trapping biases to interpret arthropod assemblages in ambers. [PDF]

open access: yesBMC Biol
Solórzano-Kraemer MM   +11 more
europepmc   +1 more source

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