Mobil

About: Mobil is a based out in . It is known for research contribution in the topics: Catalysis & Zeolite. The organization has 7085 authors who have published 10642 publications receiving 237497 citations. The organization is also known as: Socony-Vacuum Oil Company & Standard Oil Company of New York.

Nuclear magnetic relaxation and structure in aqueous heterogenous systems

Abstract: The relaxation of water in aqueous heterogeneous systems is described in terms of the effects of the substrate structure and order on the motions and arrangements of the water molecules. The genera...

Analysis of the pre-Tertiary rifting history of the Rockall Trough

Abstract: The Rockall Trough is a large, lightly explored, deep water basin offshore West of Britain. Only the 132/15-1 well has penetrated Mesozoic section within the Rockall Trough encountering a syn-rift section, interpreted on seismic reflection data, of early Cretaceous age (Hauterivian-Cenomanian) lying directly on crystalline basement. Older rift events have been proposed in the Rockall Trough to explain the extensive crustal thinning (Beta = 3 to 5) and because of the presence of older rifts on adjacent basins. Although the evidence is not conclusive, analysis of seismic reflection data within the Rockall Trough and of rift system trends on an early Cretaceous plate reconstruction do not require or suggest older than Cretaceous rifts in the Rockall Trough but also do not preclude them. Structurally, the Cretaceous rifting is highly assymetric being dominated by faults downthrowing to the southeast. A model of a reactivated Caledonian foreland thrust belt is proposed similar to that reported on the adjacent Hebridean shelf.

Incipiently drowned facies within a cyclic peritidal ramp sequence, Early Ordovician Chepultepec interval, Virginia Appalachians

Abstract: The Chepultepec interval (145 to 260 m thick) in Virginia, although dominated by peritidal carbonates, contains thick subtidal sequences that formed during repeated, incipient drowning of the Early Ordovician ramp. Cyclic peritidal sequences make up the lower member (up to 150 m thick) and upper member (up to 85 m thick). Subtidal limestone and bioherms make up the middle member (up to 110 m thick) and pass landward into cyclic peritidal facies. Average long-term subsidence rates were up to 4 cm/1,000 yr (mature passive margin rates), and ramp gradients commonly were extremely low (2 cm/km). Computer modeling helped define mechanisms involved in formation of the stratigraphic sequence. The peritidal sequences are upward-shallowing cycles (average period 140,000 to 200,000 yr) of pellet and skeletal limestone, pellet grainstone, thrombolites, intraclast grainstone, and laminite caps. These resulted from periodic sea-level oscillations of several metres amplitude, and possible slow, long-teim (third-order) sea-level fall superimposed on long-term subsidence. Tidal flats were shifted far westward after each sea-level rise but had sufficient time to prograde back across the ramp during sea-level fall. The middle number contains repeated sequences of subtidal skeletal limestone and pellet limestone with storm beds and burrowed-units (formed below fair-weather wave base), local rippled pellet limestone, and thrombolite bioherms (subwave-base to wave-agitated shoals) that may have erosional tops overlain by thin grainstone sheets. Tidal-flat facies are absent. These sequences formed by periodic sea-level rise (more than 12 to 17 m amplitude), which caused incipient drowning of the platform, and migration of tidal flats several hundred kilometres back onto the platform. These flats were unable to prograde onto the outer ramp during regression because of insufficient time and because seaward retreat of the shoreline outpaced progradation of tidal flats. This left them abandoned on the inner ramp. Similar sequences reflecting incipient drowning are widespread in the geological record.

Thermal conversion of oil shale into recoverable hydrocarbons

Abstract: The production of hydrocarbons is accomplished by pyrolysis of oil shale with controlled removal of the resulting layer of spent oil-shale residue A procedure is described for the in situ thermal conversion of oil shale wherein fluidized abrasive particles are employed to foster improved hydrocarbon production, in amount and kind, by a controlled partial removal of the layer of spent oil shale which results from application of flowing fluids to heat exposed surfaces of the oil shale to release hydrocarbons (5 claims)

Axial assembly of multi-part slider on zipper

Abstract: A method of assembling a multi-part plastic slider as a unit with a plastic reclosable fastener on plastic-film bags is disclosed. The multi-part plastic slider includes a support member with a separator finger depending therefrom and two sidewalls joined to the support members by sliding joints on the opposite edges of the support member so that the support member and sidewalls may be partially assembled into a unit which unit is then assembled with the zipper by sliding movement of the sidewalls axially on the sliding joints on the opposite edges of the support member to bring the slider into fully assembled condition.