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Sediment gravity-flow deposits and three-dimensional stratigraphic architectures of the linked Cutoff, upper Bone Spring, and upper Avalon system, Delaware Basin

Gregory S. Hurd, Charles Kerans, Edmund L. Frost, J. Antonio Simo and Xavier Janson
Sediment gravity-flow deposits and three-dimensional stratigraphic architectures of the linked Cutoff, upper Bone Spring, and upper Avalon system, Delaware Basin
AAPG Bulletin (September 2018) 102 (9): 1703-1737

Abstract

The Bone Spring play and associated Avalon subplay represent a succession of calcareous, siliceous, and carbonaceous sediment gravity-flow deposits associated with significant production of oil, condensate, and dry gas in the Delaware Basin, Texas. Correlation of the upper Bone Spring and upper Avalon systems to the outcropping Cutoff Formation slope system and lower San Andres composite sequence (Permian composite sequence 9 [PCS9], 2-4 m.y.) in the Guadalupe Mountains region allows us to investigate how slope and basinal accumulation patterns are linked to deposit types and migration patterns of the active sediment factory (shelf system). The Cutoff-upper Bone Spring-upper Avalon interval in the northern Delaware Basin records the multivariate evolution of a deep-water system associated with a drowned carbonate platform margin (large-scale inflection) characterized by (1) an increase in the rate of sediment supply to the drowned platform, (2) a transition along the relict platform from styles of sediment transport dominated by turbidity currents to styles dominated by mass-transport events, and (3) a landward shift in the locus of deposition downdip of the relict shelf margin. Reservoir-prone strata of PCS9 associated with turbidite systems demonstrate basinward-stepping geometries along shallow slope gradients downdip of the relict shelf margin and aggradational geometries along steep slopes. Nonreservoir strata associated with carbonate-rich mass-transport deposits of PCS9 accumulate near the relict shelf margin on both shallow and steep slopes. Insights developed from this study can help to improve exploration activities in the Delaware Basin and in other basins having analogous deep-water systems.


ISSN: 0149-1423
EISSN: 1558-9153
Coden: AABUD2
Serial Title: AAPG Bulletin
Serial Volume: 102
Serial Issue: 9
Title: Sediment gravity-flow deposits and three-dimensional stratigraphic architectures of the linked Cutoff, upper Bone Spring, and upper Avalon system, Delaware Basin
Affiliation: University of Texas at Austin, Bureau of Economic Geology, Austin, TX, United States
Pages: 1703-1737
Published: 201809
Text Language: English
Publisher: American Association of Petroleum Geologists, Tulsa, OK, United States
References: 92
Accession Number: 2018-077719
Categories: Economic geology, geology of energy sourcesStratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. block diags., chart, sects., strat. cols., sketch maps
N31°00'00" - N33°00'00", W105°00'00" - W103°00'00"
Secondary Affiliation: Matador Resources, USA, United StatesExxonMobil Upstream Research Company, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States
Update Code: 2018
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