General Setting
Information Search and Selection

Com ments

on

Geo logic

Para meters

1 Depth:

2 Permeability/Hydraulic Conductivity:

3 Formation Thickness:
4 Net Sand Thickness:
5 Percent Shale:
6 Continuity:
7 Top Seal Thickness:
8 Continuity of top seal:
9 Hydrocarbon Production:
10 Fluid Residence Time:
11 Flow Direction Elevation:

12

CO2 Solu bility Brine

 12a Temperature:
12b Pressure:
12c Salinity:
13 Rock/Water Reaction:
14 Porosity:
15 Water Chemistry:
16 Rock Mineralogy:

Jasper Interval, East Texas Gulf Coast

Comments on Geologic Parameters

4 Net Sand Thickness:

Galloway and others (1986) compiled excellent maps showing sand-thickness distribution in both the Lagarto and Oakville Formations along the Gulf Coast of Texas. These maps show (1) the thickening of sands around the depocenter, especially during Lagarto deposition, and (2) elongation of (beach and barrier-island) sand bodies generally parallel to the present coast. In the GIS, sand-thickness isopach maps of the Oakville and Lagarto were gridded and the two formations summed (c4jasper).

4 Map:

4 Reference:

Galloway, W. E., Jirik, L. A., Morton, R. A., and Dubar, J. R., 1986, Lower Miocene (Fleming) depositional episode of the Texas coastal plain and continental shelf: structural framework, facies, and hydrocarbon resources: The University of Texas at Austin, Bureau of Economic Geology Report of Investigations No. 150, 50 p.