Reports of Investigation

Title	Code	Year Sort ascending
The Moore Hollow Group of Central Texas	RI088	1977
Cretaceous Carbonates of Texas and Mexico: Applications to Subsurface Exploration	RI089	1977
Lineations and Faults in the Texas Coastal Zone	RI085	1976
Environmental Geology of the Austin Area: An Aid to Urban Planning	RI086	1976
Depositional Systems in the Canyon Group (Pennsylvanian System), North-Central Texas	RI082	1975
Determining the Source of Nitrate in Ground Water by Nitrogen Isotope Studies	RI083	1975
Land Capability in the Lake Travis Vicinity, Texas, A Practical Guide for the Use of Geologic and Engineering Data	RI084	1975
Stuart City Trend, Lower Cretaceous, South Texas: A Carbonate Shelf-Margin Model for Hydrocarbon Exploration	RI078	1974
Texas Lignite: Near-Surface and Deep-Basin Resources	RI079	1974
Depositional Systems, San Angelo Formation (Permian), North Texas: Facies Control of Red-Bed Copper Mineralization	RI080	1974
Approaches to Environmental Geology: A Colloquium and Workshop	RI081	1974
Edwards Group, Surface and Subsurface, Central Texas	RI074	1972
Depositional Systems and Shelf-Slope Relationships in Upper Pennsylvanian Rocks, North-Central Texas	RI075	1972
Presidio Bolson, Trans-Pecos Texas, and Adjacent Mexico: Geology of a Desert Basin Aquifer System	RI076	1972
Fossil Vertebrates from the Late Pleistocene Ingleside Fauna, San Patricio County, Texas	RI077	1972
Correlation of Tertiary Rock Units, West Texas	RI070	1971
Stratigraphy of Lower Cretaceous Trinity Deposits of Central Texas	RI071	1971
Van Horn Sandstone, West Texas: An Alluvial Fan Model for Mineral Exploration	RI072	1971
Depositional Systems in the Woodbine Formation (Upper Cretaceous), Northeast Texas	RI073	1971
Lower Cretaceous Stratigraphy, Northern Coahuila, Mexico	RI065	1970
Trilobites of the Upper Cambrian Ptychaspid Biomere, Wilberns Formation, Central Texas	RI066	1970
Facies and Genesis of a Hurricane-Washover Fan, St. Joseph Island, Central Texas Coast	RI067	1970
Pre-Chappel Conodonts of the Llano Region, Texas	RI068	1970
Gum Hollow Fan Delta, Nueces Bay, Texas	RI069	1970
Palynology of the Eddleman Coal (Pennsylvanian) of North-Central Texas	RI064	1969
Lithology and Petrology of the Gueydan (Catahoula) Formation in South Texas	RI063	1968
Lower Cretaceous Sands of Texas: Stratigraphy and Resources	RI059	1967
Sand Resources of Texas Gulf Coast	RI060	1967
Late Cambrian and Early Ordovician Faunas from Wilberns Formation of Central Texas	RI062	1967
Limestone and Dolomite Resources, Lower Cretaceous Rocks, Texas	RI056	1966
Sedimentary Petrology and History of the Haymond Formation (Pennsylvanian), Marathon Basin, Texas	RI057	1966
Nomenclature Revision of Basal Cretaceous Rocks between the Colorado and Red Rivers, Texas	RI058	1966
Rock and Mineral Resources of East Texas	RI054	1965
Heavy Minerals in the Wellborn Formation, Lee and Burleson Counties, Texas	RI055	1965
Relation of Ogallala Formation to the Southern High Plains in Texas	RI051	1964
Stratigraphy of the Fredericksburg Division, South-Central Texas	RI052	1964
Pleistocene Geology of Red River Basin in Texas	RI049	1963
Lignites of the Texas Gulf Coastal Plain	RI050	1963
Potential Low-Grade Iron Ore and Hydraulic-Fracturing Sand in Cambrian Sandstones, Northwestern Llano Region., Texas	RI053	1963
Hurricanes as Geological Agents: Case Studies of Hurricanes Carla, 1961, and Cindy, 1963	RI061	1963
Mineral Resources of South Texas: Region Served Through the Port of Corpus Christi	RI043	1962
Pleistocene Molluscan Faunas and Physiographic History of Pecos Valley in Texas	RI045	1962
A Stratigraphic Datum, Cisco Group (Upper Pennsylvanian), Brazos and Trinity Valleys, North-Central Texas	RI046	1962
Upper Franconian and Lower Trempealeauan Cambrian Trilobites and Brachiopods, Wilberns Formation, Central Texas	RI047	1962
The Hill-Shuler Local Faunas of the Upper Trinity River, Dallas and Denton Counties, Texas	RI048	1962
Texas Gemstones	RI042	1961
Stratigraphic Names in the Midway and Wilcox Groups of the Gulf Coastal Plain	RI044	1961
Stratigraphy of the Blach Ranch: Crystal Falls Section (Upper Pennsylvanian), Northern Stephens County, Texas	RI041	1960
Internal Structure of the Grand Saline Salt Dome, Van Zandt County, Texas	RI038	1959
Correlation of the Ogallala Formation (Neogene) in Western Texas with Type Localities in Nebraska	RI039	1959