Abstract
Veins of bitumen occur in the Jurassic-Cretaceous of northern Cuba in the vicinity of oil fields dominated by extra-heavy crude. Some bitumen veins are associated with hydrothermal mineralization. Calcite vein rock at Soroa contains evidence for three phases of hydrocarbon migration: fresh oil fluid inclusions, followed by thermally altered oil (coeval aqueous fluid inclusions at up to 221 °C), then less altered oil. In addition to demonstrating a mechanism for producing altered oil other than by biodegradation, these observations support a model of multi-episodic hydrocarbon migration, which may be related to thrusting of the source beds.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
