Results 101 to 110 of about 7,015 (163)

Biostratigraphy of Lower Cretaceous from Selected Borehole in central Iraq

Academic Science Journal
تكوين سرمورد هو تكوين مهم تم ترسيبه في شمال ووسط العراق الطباشيري السفلي. تمت دراسته لأغراض الرسم الطبقي الحيوي في قسمين تحت السطح في آبار حقل نفط تكريت: TK3 و TK5 في حكومة تكريت. يُعرف التكوين بأهميته وقد تمت دراسته على نطاق واسع من قبل الباحثين. تشكيل
Luay S. Shakir, Anwar K. Mousa
doaj   +1 more source

The Cogollo Group and the oceanic anoxic events 1a and 1b, Maracaibo basin, Venezuela

Brazilian Journal of Geology
Carbonates of Cogollo Group (Apón, Lisure and Maraca formations) constitute the broader calcareous platform system originated during Aptian and Albian of Cretaceous in north-western South America, Maracaibo Basin, Venezuela.
José Alejandro Méndez Dot, José Méndez Baamonde, Dayana Reyes, Rommel Whilchy   +3 more
doaj   +1 more source

(Table 6) Mineralogy of selected color-band Aptian-Hauterivian sediments from ODP Hole 123-765C

, 1992
(Table 6) Mineralogy of selected color-band Aptian-Hauterivian sediments from ODP Hole 123 ...
David T Heggie (6967712), Heggie, David T   +1 more
core   +1 more source

Microfacies of a Lower Cretaceous marine successions in Cerro Las Conchas, Sonora, Mexico

Revista Mexicana de Ciencias Geológicas, 2019
The upper Aptian-middle Albian marine sequence exposed in the Cerro Las Conchas is clearly upside down, being the middle Albian rocks in the topographic base of the sequence, while the upper Aptian is in the upper part of the section.
Rogelio Monreal-Saavedra
doaj  

Glomospirella cantabrica n. sp., and other benthic foraminifera from Lower Cretaceous Urgonian-type carbonates of Cantabria, Spain: Biostratigraphic implications

Geologica Acta, 2016
A new benthic foraminifer is described as Glomospirella cantabrica n. sp. from several sections of the upper Aptian Reocín Formation and one occurrence from the lowermost Albian Las Peñosas Formation of Cantabria (northern Spain). It represents a rather
F. SCHLAGINTWEIT, I. ROSALES, M. NAJARRO
doaj  

(Table 2) Carbonate content of Aptian turbidites and intercalated bachground sediments at ODP Hole 123-765C

, 1992
(Table 2) Carbonate content of Aptian turbidites and intercalated bachground sediments at ODP Hole 123 ...
Dumoulin, Julie Ann, Julie Ann Dumoulin (7967972)   +1 more
core   +1 more source

Speculative petroleum systems of the Punta del Este Basin (offshore Uruguay)

Brazilian Journal of Geology
: The Uruguayan continental margin was generated as the result of the breakup of Gondwana and, later, the opening of the South Atlantic Ocean, which began in the Jurassic.
Ethel Morales, Hung Kiang Chang, Matías Soto, Gerardo Veroslavsky, Bruno Conti, Héctor de Santa Ana, Fernando Santos Corrêa   +6 more
doaj   +1 more source

Early-Late Cretaceous (Aptian-Cenomanian) Palynomorphs

, 1985
. Samples from 12 wells situated mainly in the northern part of the Cyrenaica Shelf of northeast Libya have yielded palynomorph assemblages of Aptian, Albian or Cenomanian aspect.
D. J. Batten, P. J. R. Uwins
core   +1 more source

Calcareous nannofossil biostratigraphy of an outcrop section of Aptian sediments of west-central Portugal (Lusitanian Basin)

, 2009
. The present work is the first study of nannofossils from the Ponta Alta and Praia da Lagoa members of the Cresmina Formation and provides a new approach to establishing the age of these sediments.
M. Cristina Cabral, Paul R. Bown, Rui O. B. P. Da Gama   +2 more
core   +1 more source