Lignite occurs in three Eocene stratigraphic units--the Wilcox Group, Yegua Formation, and Jackson Group--and in three ancient depositional systems-fluvial, deltaic, and strandplain/lagoonal.

Tertiary strata of the Texas Gulf Coast comprise a number of terrigenous depositional wedges, some of which thicken abruptly at their downdip ends as a result of contemporaneous movement of growth faults and underlying salt.

Contributing about 25 percent of all the energy ever produced in the United States, Texas has for 50 years led the nation in energy production.

Texas is endowed with an enormous variety of natural land resources that vary from the humid forest lands of East Texas to the vast desert lands of Trans-Pecos, from the swamps and marshes of the Texas Coastal Zone to the arid plains of the Panhandle, and from the rich farmland of Central Texas t

The objectives of this symposium [were] (1) to bring together individuals from universities and industry who have conducted research on Cretaceous carbonates, in order to accelerate communication, exchange ideas, and discuss differences of opinion; (2) to emphasize subsurface carbonate studies bu

The State of Texas has about 367 miles of open Gulf shoreline, most of it typified by rather broad, sandy beaches and a comparatively mild climate that permits almost year-round use of this recreational resource. All but about 87 miles of the Gulf beach is accessible to the general public.

Three principal depositional systems were defined within the Sparta Formation of Texas using surface and subsurface data: high-constructive delta system in east Texas; strandplain-barrier bar system in central Texas; and high-destructive, wave-dominated delta system in south Texas.

The Paluxy Formation is a stratigraphic unit which is composed of sandstone and shale and extends across the northern part of the East Texas embayment.

The objective of this study is to identify major sand trends, which, along with subsurface temperatures and pressures, aid in evaluating the potential of producing geothermal energy from the Frio Formation, Upper Texas Gulf Coast.

This large-scale map of Texas displays the full range and scope of energy resources in the State. Oil and gas fields are shown according to the age of the producing reservoir.