Sedimentology, stratigraphy, and hydrocarbon reservoir-source rock potential, using surface and subsurface data, of Tertiary and Mesozoic strata, Bristol Bay Basin and Alaska Peninsula

Metamorphic rock burial hill reservoir of Beier rift in Hailaer Basin, with large scale reservoir and high output has complex fault system. The fault through going direction roughly is NEE direction, and has wide fault section and lateral quickly changed fault displacement. Metamorphic rock reservoir can be divided into the vertical weathered fracture zone, crack and dissolved pores and caves development belt and tight zone. Accumulation is controlled by hydrocarbon ability of source rock, contacting relationship of source rock and reservoir, oil storage ability of reservoir, and vertical and lateral hydrocarbon migration ability of fault and unconformity surface. And formed top surface weathering crust accumulation pattern which the hydrocarbon migrated laterally along the unconformity surface, and interior reservoir pattern of crack broken zone accumulation which hydrocarbon migrated vertically along fault.

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Crustal structure in the southern Bering Shelf and the Alaska Peninsula from inversion of surface-wave dispersion data

Bulletin of the Seismological Society of America ◽

10.1785/bssa0790061883 ◽

1989 ◽

Vol 79 (6) ◽

pp. 1883-1893

Author(s):

Mansour Niazi ◽

Kin-Yip Chun

Keyword(s):

Crustal Structure ◽

Velocity Structure ◽

Structural Characteristics ◽

Resolving Power ◽

Surface Wave Dispersion ◽

Bristol Bay ◽

Alaska Peninsula ◽

South Central ◽

Bering Shelf ◽

Group Velocities

Abstract Dispersion of surface waves in the southern Bering Shelf (Bristol Bay) and the Alaska Peninsula is investigated for a study of the regional crustal structure. Our data consist of five shallow earthquakes located along the Aleutian Arc and recorded by long-period, three-component seismographs sited in south-central Alaska. Both Love and Rayleigh group velocities are obtained through the application of the phase-matched filtering technique. The results are converted to equivalent pure-path data by appropriate adjustment using the published information for the continental Alaska. Treating the shear velocity of each layer as an independent parameter, the pure-path group velocities of Love and Rayleigh waves are jointly inverted in order to obtain a satisfactory agreement between the theoretical and the observed dispersion characteristics. Estimates of the resolving power of the inversion and uncertainty of the final velocity structure show substantial improvement over the previously published models. With their crustal thicknesses ranging between 33 and 36 km, none of the final models displays structural characteristics reminiscent of an oceanic crust. Over the northernmost path across the Bristol Bay, we found an indication of a weak low-velocity zone (five per cent reduction relative to the lid velocity) whose prominence diminishes towards the south.

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Pottery from Hooper Bay Village, Alaska

American Antiquity ◽

10.2307/276239 ◽

1952 ◽

Vol 18 (1) ◽

pp. 18-29 ◽

Cited By ~ 12

Author(s):

Wendell Oswalt

Keyword(s):

Organic Material ◽

Preliminary Analysis ◽

Good Time ◽

Bristol Bay ◽

Alaska Peninsula ◽

The North ◽

Great Area ◽

The Face ◽

Southern Section ◽

Archaeological Excavations

Archaeological excavations along coastal Alaska from Cape Prince of Wales south to the Alaska Peninsula, a distance of approximately 2000 miles, were not initiated until 1948, when Giddings (1949) began work in the north at Cape Denbigh, and Larsen (1950) began at Bristol Bay in the southern section of this great area (see Fig. 7). During the summer of 1950 the writer carried out excavations at Hooper Bay, in approximately the center of the unworked region. Although the Hooper Bay Village material includes about 2000 artifacts and 1500 pot and lamp sherds, this paper is limited to a preliminary analysis of the cooking pots. The importance of pottery in determining the sequence within Eskimo prehistory has been neglected, in the face of the abundance of organic material which the frozen middens and house remains yield. The full significance of Alaskan pottery was not emphasized until de Laguna (1947) made her detailed study of the ware; also, Larsen (1950, p. 186) pointed out that potsherds are particularly good time indicators in a region like southwestern Alaska, where the preservation is poor. In this paper the Hooper Bay sherds are considered with particular reference to their position within the Bristol Bay-Norton Sound region and their relationship to finds of similar pottery in the north.

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