Geology and hydromechanical properties of the basement-sediment interface, Llano Uplift, Central Texas

2021 ◽  
Author(s):  
O. A. Callahan ◽  
Peter Eichhubl ◽  
J. R. Kyle
Keyword(s):  
Central Texas ◽  
Llano Uplift ◽  
Sediment Interface

Petrogenesis of Mesoproterozoic granitic plutons, eastern Llano Uplift, central Texas, USA

Lithos ◽  
2010 ◽  
Vol 118 (3-4) ◽  
pp. 238-254 ◽  
Author(s):  
R.K. Smith ◽  
Walt Gray ◽  
Tyson Gibbs ◽  
M.A. Gallegos
Keyword(s):  
Central Texas ◽  
Llano Uplift

Crystalline-rock aquifer system of the Llano Uplift, Central Texas, USA

2019 ◽  
Vol 27 (7) ◽  
pp. 2431-2446
Author(s):  
Neeraja Setlur ◽  
John M. Sharp ◽  
Brian B. Hunt
Keyword(s):  
Crystalline Rock ◽  
Aquifer System ◽  
Central Texas ◽  
Llano Uplift

Mesoproterozoic chronostratigraphy of the southeastern Llano uplift, central Texas

2000 ◽  
Vol 112 (2) ◽  
pp. 278-291 ◽  
Author(s):  
J. F. Reese ◽  
S. Mosher ◽  
J. Connelly ◽  
R. Roback
Keyword(s):  
Central Texas ◽  
Llano Uplift

The paleoecological implications of the charophyte flora of the Trinity Division, Junction, Texas

1994 ◽  
Vol 68 (5) ◽  
pp. 1145-1157 ◽  
Author(s):  
Ingeborg Soulié-Märsche
Keyword(s):  
Structural Feature ◽  
North Africa ◽  
Type Material ◽  
Deep Well ◽  
Central Texas ◽  
Llano Uplift ◽  
The Trinity

The Trinity Division exposures at Junction, Kimble County, Texas, yield a rich charophyte flora dominated by clavatoraceans. The presence of Atopochara trivolvis ssp. trivolvis (Peck, 1938) Grambast, 1968, and Clypeator corrugatus (Peck, 1941) Grambast, 1962, indicates an Aptian age for these strata and makes them the continental equivalent of the Lower Glen Rose. Atopochara trivolvis, whose type-material was recovered from the Trinity in a deep well in southern Texas, is known from numerous freshwater to oligohaline lakes from the Mesogean area in Europe and North Africa as well as from Cretaceous oil-bearing basins in China. Charophytes are clear indicators of supratidal environments and the abundant remains at Junction suggest a positive structural feature in this part of central Texas that might have been either an island or directly connected to the Llano Uplift.

Oolitized fragments of filamentous calcimicrobes and the pseudofossil affinity of Nuia Maslov from the Upper Cambrian rocks of central Texas

1998 ◽  
Vol 72 (3) ◽  
pp. 577-584 ◽  
Author(s):  
Ben R. Spincer
Keyword(s):  
Upper Cambrian ◽  
Central Texas ◽  
Llano Uplift

The origin and affinity of the problematic Nuia Maslov is reappraised from exceptionally preserved specimens in Upper Cambrian (Sunwaptan) rocks of the Llano Uplift, central Texas. Nuia is suggested to be a radial calcitic ooid that has nucleated on fragments of reworked filamentous calcimicrobes rather than a separate microorganism as has been assumed previously. Nuia is found predominantly in intrareef grainstone accumulations, as well as in interreef grainstones, invariably accompanied by other bioclastic debris showing similar radial calcite ooid overgrowths.

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