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Liberia has some of the largest iron ore reserves in Africa, with iron content of 30% to 67%, in banded iron formations from the Precambrian. The high grade ores, with more than 60% are primarily hematite, while lower grade ores with 30 to 40% iron are generally magnetite. Liberia also has medium-grade deposits of mixed hematite and magnetite.
Texas has been the leading state in petroleum production since discovery of the Spindletop oil field in 1901. [11] As of October 2017, the State of Texas (if treated as its own nation) is the 7th largest oil producing nation in the world, with production totaling approximately 3.78 million barrels (600 thousand cubic meters ) per day of oil ...
The Woodbine Group was first mapped and named by Robert T. Hill, known as the "Father of Texas Geology", for outcrops near the small town of Woodbine, Texas in 1901. [2] The Woodbine represents ancient river and delta systems that originated from erosion of the Ouachita Uplift in modern-day Oklahoma and Arkansas and the Sabine Uplift in modern ...
Folk was appointed in September 1952 as an assistant professor in the geology department of the University of Texas at Austin. [5] There he was promoted to associate professor and then full professor, including the Professorship in Sedimentary Geology (1977–1982) and the Carlton Professorship of Geology (1982–1988). [ 3 ]
The Wilcox Group is an important geologic group in the Gulf of Mexico Basin and surrounding onshore areas from Mexico and Texas to Louisiana and Alabama. The group ranges in age from Paleocene to Eocene and is in Texas subdivided into the Calvert Bluff , Simsboro and Hooper Formations , [ 1 ] and in Alabama into the Nanafalia and Hatchetigbee ...
Buda Limestone stratigraphic column in Texas. The Buda Limestone is a geological formation in the High Plains and Trans-Pecos regions of West Texas [1] and in southern New Mexico, [2] whose strata date back to the Late Cretaceous. Pterosaur remains are among the fossils that have been recovered from the formation. [3]
The Goliad Formation (Tg) [1] is a geologic formation in Texas.It preserves fossils dating back to the Serravallian to earliest Pliocene stages (Clarendonian, Hemphillian and earliest Blancan in the NALMA classification) of the Neogene period, [2] including the gomphothere Blancotherium among many other fossil mammals, reptiles, birds and fish.
Robert James (Bob) Stern (born February 2, 1951) is an American geoscientist based in Texas. Bob Stern, age 50, at sea in the Western Pacific, 2001 Bob Stern in August 2017. Stern is Professor of Geosciences and Director of the Global and Magmatic Research Laboratory at the University of Texas at Dallas University of Texas at Dallas.