Site-specific sequence-stratigraphic section benchmark charts are key to regional chronostratigraphic systems tract analysis in growth-faulted basins

Brown, L. F.; Treviño, Ramón

doi:10.1306/01270504066

Cited by 17 publications

(11 citation statements)

References 10 publications

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“…The data by Ye et al (1993) produce a good linear regression (R 2 = 0.90) and were approximated to a single sedimentation rate value. The obtained rates were compared with those of Brown et al (2004Brown et al ( , 2005 from complete sections from the Corpus Chirsti area and were in excellent agreement. Also, these rates generate an age of 31 My for the deepest sample, in good agreement with the fact that all samples are from the Frio formation (bottom 30-33 My old).…”

Section: Se Texas (2)mentioning

confidence: 70%

Modeling of smectite illitization in burial diagenesis environments

Cuadros

2006

Geochimica et Cosmochimica Acta

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Section: Se Texas (2)mentioning

confidence: 70%

Modeling of smectite illitization in burial diagenesis environments

Cuadros

2006

Geochimica et Cosmochimica Acta

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“…Sequence-stratigraphic setting of each sample was interpreted from wireline-log patterns from geophysical logs and core descriptions, if available. The method used to define systems tracts follows the work of Brown et al (2004Brown et al ( , 2005, Mitchum et al (1994), andVan Wagoner et al (1990). Systems tracts have well defined log signatures, and the vertical stacking pattern of systems tracts in growth-faulted subbasins is predictable (Brown et al, 2004(Brown et al, , 2005.…”

Section: Samples and Methodsmentioning

confidence: 99%

Reprint of: Diagenetic controls on evolution of porosity and permeability in lower Tertiary Wilcox sandstones from shallow to ultradeep (200–6700m) burial, Gulf of Mexico Basin, U.S.A.

Dutton

Loucks

2010

Marine and Petroleum Geology

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a b s t r a c tReservoir quality is a critical risk factor in deep to ultradeep reservoirs at depths >4.5 km. Analysis of Paleogene Wilcox sandstones on the upper Texas Gulf Coast provides insight into the evolution of reservoir quality during shallow to ultradeep burial diagenesis. Reduction of porosity and permeability with burial in Wilcox sandstones was evaluated using subsurface samples from 200 to 6700 m, at temperatures of 25-230 C. Diagenesis and petrophysical properties were interpreted from petrographic data and core analyses. Wilcox sandstones are mostly lithic arkoses and feldspathic litharenites having an average composition of Q 59 F 22 R 19 . Provenance did not change significantly during Wilcox deposition in this area, nor does average sandstone composition vary among lower, middle, and upper Wilcox sandstones. However, composition does vary with sequence-stratigraphic position; lowstand slope-fan deposits contain more rock fragments than do deposits from highstand or transgressive systems tracts. Given observations from this onshore dataset, Wilcox sandstones deposited in deepwater environments in the Gulf of Mexico are likely to contain more rock fragments than their linked highstand equivalents.Pore types in Wilcox sandstones change from a mix of primary and secondary pores and micropores at shallower depths to predominantly secondary pores and micropores in deeper sandstones. Wilcox sandstones show steady porosity reduction from an average of 33% at 38 C to 12% at 132 C, with little additional loss at higher temperatures. By 132 C, most primary pores have been lost by mechanical compaction or occluded by quartz cementation. Volume of secondary pores remains nearly constant despite dissolution of 3.5% average potassium feldspar during deep burial. Volume of this late dissolution of potassium feldspar is offset by precipitation of ankerite, albite, illite, and minor quartz in secondary pores. The proportion of microporosity, which occurs in authigenic clays, altered grains, and matrix, increases in the deepest sandstones. Change in proportion of pore types and reduction in total porosity with increasing temperature changes porosity-permeability transforms. Because most deep to ultradeep Wilcox sandstones are dominated by secondary pores and micropores, porosity-permeability transforms have lower slopes than those for shallower sandstones.

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“…Studies by Brown et al (2004Brown et al ( , 2005 indicated that the Oligocene (Frio Formation) growth-fault -controlled subbasins in the Corpus Christi Bay area ( Figure 1) are genetically similar to many growth-faulted subbasins that were formed during third-order (1-1.3-m.y.) Tertiary cycles in the Gulf of Mexico.…”

Section: Third-order Tectonic and Depositional Frameworkmentioning

confidence: 99%

“…The sediments in the third-order lowstand slope-fan system are predominantly muddy and have thin intervals of sandstones and siltstones. Approximate microfossil biozone correlation indicates that they were deposited below the subaerial shelf edge (Brown et al, , 2005.…”

Section: Third-order Tectonic and Depositional Frameworkmentioning

confidence: 99%

“…The coarsening-upward wireline-log motif indicates the progradation of the slope fan from distal sands at the bottom to more proximal sands (channels) in the middle. The fining-upward wireline-log motif is inferred as a channel-levee facies associated with a relative lowstand, aggradational slope fan (Brown et al, , 2005.…”

Section: Fourth-and Fifth-order Sequences Interpreted From Wire-line mentioning

confidence: 99%

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Mapping sediment-dispersal patterns and associated systems tracts in fourth- and fifth-order sequences using seismic sedimentology: Example from Corpus Christi Bay, Texas

Zeng¹,

Loucks²,

Brown³

2007

Bulletin

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A seismic-sedimentologic study was performed to map fourth-and fifth-order systems tracts in Oligocene (Frio) strata in Corpus Christi Bay, south Texas. Guided by third-order sequence-stratigraphic correlations from seismic and wire-line-log data, we prepared stratal slices from a three-dimensional seismic volume to reveal highresolution (10-m [33-ft] levels) sediment dispersal patterns and associated systems tracts in a relative geologic-time domain. On average, 1200 m (3940 ft) of sediments were deposited in the thirdorder lowstand expansion cycle, and at least 16 higher order sequences (fourth-and fifth-order sequences) were recognized. Three types of depositional systems were identified in the Frio stratigraphic section:(1) offshelf lowstand slope fans that are best characterized by submarine channel and levee systems inside and outside incised submarine channels and by fan-shaped sand body geometry; (2) lowstand prograding deltaic systems that are composed of strike-oriented and lobate deltaic sand bodies; and (3) highstand systems that are represented by onshelf barrier, lagoon, and deltaic systems. Higher order sequence development was controlled by the interaction of relative sea level change, sediment supply, and gravity tectonics. The top of sediment ridges was eroded or decapitated during many of the higher order sequences. Sand dispersal patterns are primarily controlled by accommodation resulting from rollover topography associated with growth faulting. Between the boundary fault and the hinge line atop rollover structures, strike-oriented sandstone bodies dominate; within submarine channels and incised valleys and beyond the hinge line to the distal basin, dip-oriented sandstone

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Site-specific sequence-stratigraphic section benchmark charts are key to regional chronostratigraphic systems tract analysis in growth-faulted basins

Cited by 17 publications

References 10 publications

Modeling of smectite illitization in burial diagenesis environments

Modeling of smectite illitization in burial diagenesis environments

Reprint of: Diagenetic controls on evolution of porosity and permeability in lower Tertiary Wilcox sandstones from shallow to ultradeep (200–6700m) burial, Gulf of Mexico Basin, U.S.A.

Mapping sediment-dispersal patterns and associated systems tracts in fourth- and fifth-order sequences using seismic sedimentology: Example from Corpus Christi Bay, Texas

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