Source-Rock and Carbonization Study, Maracaibo Basin, Venezuela

1984 ◽  
Author(s):  
Rudolf Blaser ◽  
Christopher White
Keyword(s):  
Source Rock ◽  
Maracaibo Basin

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

2015 ◽  
Vol 45 (suppl 1) ◽  
pp. 41-61 ◽  
Author(s):  
José Alejandro Méndez Dot ◽  
José Méndez Baamonde ◽  
Dayana Reyes ◽  
Rommel Whilchy
Keyword(s):  
Source Rock ◽  
Organic Geochemistry ◽  
Sedimentary Facies ◽  
Source Rocks ◽  
Maracaibo Basin ◽  
Pelagic Environment ◽  
Anoxic Events ◽  
Anoxic Environment ◽  
Platform System ◽  
La Luna

ABSTRACTCarbonates 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. On the shallow shelf, a variety of calcareous sedimentary facies were deposited during marine transgressive and regressive cycles. Some of them developed porosity and constitute important hydrocarbon reservoirs. Due to some major marine transgressions, from early Aptian, the anoxic environment and characteristic facies of a pelagic environment moved from the outer slope and basin to the shallow shelf, during specific time intervals, favouring the sedimentation of organic matter-rich facies, which correspond to the oceanic anoxic events (OAEs) 1a and 1b. The source rock of Machiques Member (Apón Formation) was deposited during early Aptian OAE 1a (~ 120 Ma). The source rock of Piché Member, located at the top of the Apón Formation, was deposited during late Aptian OAE 1b (~ 113 Ma). Finally, La Luna Formation, from Cenomanian, that covers the OAE 2 (~ 93 Ma), represents the most important source rock in the Maracaibo Basin. In this way and based on sedimentological and organic geochemistry results from the determinations performed on 247 samples belonging to six cores in the Maracaibo Basin, we propose these two organic-rich levels, deposited on the shallow shelf of the Cogollo Group, as "effective source rocks", additional to La Luna Formation, with oil migration in relatively small distances to the porosity facies.

Methylphenanthrene maturity index of marine source rock extracts and crude oils from the Maracaibo Basin

1988 ◽  
Vol 13 (1-3) ◽  
pp. 73-80 ◽  
Author(s):  
Fernando Cassani ◽  
Oswaldo Gallango ◽  
Suhas Talukdar ◽  
Carlos Vallejos ◽  
Ursula Ehrmann
Keyword(s):  
Source Rock ◽  
Maturity Index ◽  
Crude Oils ◽  
Maracaibo Basin ◽  
Marine Source Rock ◽  
Marine Source

Methylphenanthrene maturity index of marine source rock extracts and crude oils from the Maracaibo Basin

1988 ◽  
pp. 73-80 ◽  
Author(s):  
FERNANDO CASSANI ◽  
OSWALDO GALLANGO ◽  
SUHAS TALUKDAR ◽  
CARLOS VALLEJOS ◽  
URSULA EHRMANN
Keyword(s):  
Source Rock ◽  
Maturity Index ◽  
Crude Oils ◽  
Maracaibo Basin ◽  
Marine Source Rock ◽  
Marine Source

Holocene Intertidal Microbial Mats Of Qatar And Their Implications For Petroleum Source Rock Formation In Carbonate-Siliciclastic-Evaporite Systems

2014 ◽  
Author(s):  
Miroslaw Slowakiewicz ◽  
Richard D. Pancost ◽  
Lisa Thomas ◽  
Maurice E. Tucker ◽  
Sher Mey Didi-Ooi ◽  
...  
Keyword(s):  
Source Rock ◽  
Microbial Mats ◽  
Rock Formation ◽  
Petroleum Source Rock

Modeling Tectonic Heat Flow and Source Rock Maturity in the Rub

2014 ◽  
Author(s):  
R. Abdul Fattah ◽  
S. Meekes ◽  
J. Bouman ◽  
J. Ebbing ◽  
R. Haagmans
Keyword(s):  
Heat Flow ◽  
Source Rock
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