Turritelline gastropods comprise one of the most important macrofossil groups
(volumetrically, taxonomically, and biostratigraphically) of the Cenozoic and Late Mesozoic …

Patterns of uranium–molybdenum covariation in marine sediments have the potential to
provide insights regarding depositional conditions and processes in paleoceanographic …

The Cretaceous is characterized by unusually widespread distribution of “black shales”--
sequences of variable lithology containing numerous beds with organic-carbon (OC) …

The position of the central axis of deposition over Colombian and Venezuelan continental
crust has varied markedly through time. The axis migrated from west to east from Late …

The northwest margin of South America has undergone multiple phases of compressional
deformation beginning in the Late Cretaceous and culminating in the Pliocene-Pleistocene …

Three main phases occurred in the Jurassic-Eocene geologic history of Lake Maracaibo:(1)
Jurassic rifting related to separation of the North and South American continents;(2) Early …

The break-up of Gondwana in the latest Jurassic and earliest Cretaceous and the
subsequent opening and evolution of the South Atlantic Ocean as a new widening seaway …

Organic‐rich Upper Cretaceous sequences in Israel were deposited in an extensive, highly
productive upwelling‐linked system which prevailed along the southern Tethys margin, and …

The western margin of South America was encroached upon by a series of marine advances
that increased in extent from the Early Cretaceous to a maximum in the early Late …

The fluvial geochemistry of the tributaries of the Orinoco draining the eastern branch of the
northern Andes in Colombia and Venezuela is determined by lithology and ranges from …