Depositional systems in the Sparta Formation (Eocene), Gulf Coast basin of Texas

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. Principal facies constituents of the high-constructive delta include upper delta plain in outcrop and lower delta plain, delta front, and prodelta in subsurface. Five major deltaic lobes in the Sparta Formation are similar to various lobes of the Eocene Queen City Formation, Lower Wilcox Group, Jackson Group, and Yegua Formation of Texas. The Sparta high constructive delta system is present from Fayette and Colorado counties in Texas, eastward into Louisiana, Mississippi, and Arkansas. The Sparta strandplain-barrier bar system of central Texas is basically composed of a single multistory barrier bar unit. It was constructed with sand transported along strike by longshore currents from reworked sediments of the high-constructive delta system in east Texas. This system extends from Fayette and Colorado counties westward to Atascosa and Live Oak counties. A Halocene analog is the Texas barrier island system. Eocene analogs are the strandplain-barrier bar system of the Eocene Jackson Group, Yegua Formation, Lower Wilcox Group, and Queen City Formation. A high-destructive delta system in south Texas is composed essentially of coastal barriers and associated lagoonal facies in outcrop; and coastal barrier, lagoon, and prodelta shelf facies in the subsurface. This wave-dominated delta system is present from Atascosa and Live Oak counties southward to the Rio Grande, and it extends into northern Mexico. Eocene analogs occur in the south Texas Wilcox Group, Yegua Formation, and Queen City Formation. Oil and gas have not been found in the Sparta Formation, in part because little growth faulting was associated with the thin Sparta delta front sandstone and prodelta shale facies. Water chemistry variations are closely related to depositional systems within the Sparta Formation. A bicarbonate province is related to updip areas (major fluvial influence) of the high-constructive delta system of east Texas; a sulfate province occurs in updip areas (barrier bar/lagoon influence) associated with the high destructive delta system of south Texas and central Texas; and a chloride province is associated with downdip marine sandstone facies of barrier and deltaic origin. Flushing by fresh water has quantitatively but not qualitatively altered the initial water distribution within the various Sparta sand facies.Geological Science

PSJA High School Yearbook, 1963

Color, Black and white images. Bear Memories 1963.https://scholarworks.utrgv.edu/psjayearbooks/1013/thumbnail.jp

PSJA High School Yearbook, 1966

Color, black and white images. Bear Memories 1966.https://scholarworks.utrgv.edu/psjayearbooks/1017/thumbnail.jp

The Hopes and Fears of All the Years: 30 Years Behind and the Road Ahead for the Widespread Use of Mediation

Published in cooperation with the American Bar Association Section of Dispute Resolutio

PSJA High School Yearbook, 1964

Color, black and white images. Bear Memories 1964.https://scholarworks.utrgv.edu/psjayearbooks/1014/thumbnail.jp

PSJA High School Yearbook, 1962

Black and white images. Bear Memories 1962.https://scholarworks.utrgv.edu/psjayearbooks/1012/thumbnail.jp

PSJA High School Yearbook, 1977

Color, black and white images. Bear Memories 1977.https://scholarworks.utrgv.edu/psjayearbooks/1029/thumbnail.jp

PSJA High School Yearbook, 1978

Color, black and white images. Bear Memories 1978.https://scholarworks.utrgv.edu/psjayearbooks/1039/thumbnail.jp

PSJA High School Yearbook, 1979

Color, black and white images. Bear Memories 1979.https://scholarworks.utrgv.edu/psjayearbooks/1040/thumbnail.jp

Celi\u27s Expedition to Tampa Bay: A Historical Analysis

De la Havana al Puerto de Tampa, Año de 1757, Diario de Reconocimientos, Oceano Atlantico Septentrional by Don Francisco Maria Celi is unquestionably a key document in Florida history and the history of Tampa Bay. The chronology of its recent discovery is not too complicated. Celi, “Pilot of the Royal Spanish Navy” and commander of the Florida expedition, carefully prepared a useful and artistically beautiful map that went with his report. This map (actually there were two versions) was known to modern historians, but the accompanying report was not. The late Clarence Simpson had knowledge of the Celi map, as did the Latin American history specialist, Arthur P. Whitaker, who made reference to it in 1931. Florida historian Mark F. Boyd and Florida archaeologist Ripley Bullen recalled having seen the map during the course of their research, but none of these social scientists had specified the archival origin or the historical particulars of the map