Distinguishing pedogenic and non-pedogenic silcretes in the landscape and geological record
JS Ullyott, DJ Nash - Proceedings of the Geologists' Association, 2016 - Elsevier
Silcrete is a type of duricrust formed by the near-surface accumulation of secondary silica
within a soil, sediment, rock or weathered material. A variety of models of formation have …
within a soil, sediment, rock or weathered material. A variety of models of formation have …
Neogene expansion of the North American prairie
GJ Retallack - Palaios, 1997 - pubs.geoscienceworld.org
Neogene paleosols of the Great Plains and central Oregon provide abundant evidence of
grasslands of the past. The characteristic surface horizon (mollic epipedon) of grassland …
grasslands of the past. The characteristic surface horizon (mollic epipedon) of grassland …
Effect of paleosol formation on rare earth element signatures in fossil bone
The rare earth element (REE) content of fossil bones was analyzed and compared with the
degree of ancient pedogenic development and depositional environments from several …
degree of ancient pedogenic development and depositional environments from several …
Paleopedology of the Chadron Formation of Northwestern Nebraska: implications for paleoclimatic change in the North American midcontinent across the Eocene …
DO Terry Jr - Palaeogeography, Palaeoclimatology, Palaeoecology, 2001 - Elsevier
The Big Cottonwood Creek Member is a newly recognized lithostratigraphic unit of the
Chadron Formation of northwestern Nebraska. I measured 23 superimposed paleosol …
Chadron Formation of northwestern Nebraska. I measured 23 superimposed paleosol …
[PDF][PDF] Lithostratigraphic revision and correlation of the lower part of the White River Group: South Dakota to Nebraska
DO Terry, HE LaGarry, RM Hunt - … -GEOLOGICAL SOCIETY OF …, 1998 - i2massociates.com
Lithologic correlations between type areas of the White River Group in Nebraska and South
Dakota have resulted in a revised lithostratigraphy for the lower part of the White River …
Dakota have resulted in a revised lithostratigraphy for the lower part of the White River …
Recognition and implications of Eocene tufas and travertines in the Chadron formation, White River Group, Badlands of South Dakota
JE Evans - Sedimentology, 1999 - Wiley Online Library
There are few descriptions of pre‐Quaternary tufa or travertine, yet these deposits have
important climatic, hydrological and tectonic implications. In the Badlands of South Dakota …
important climatic, hydrological and tectonic implications. In the Badlands of South Dakota …
The significance of incision and fluvial sedimentation in the basal White River Group (Eocene-Oligocene), Badlands of South Dakota, USA
JE Evans, DO Terry Jr - Sedimentary Geology, 1994 - Elsevier
A newly defined lithostratigraphic unit, the Chamberlain Pass Formation (CPF), records the
initial episode of incision, fluvial sedimentation, and pedogenesis in SW South Dakota …
initial episode of incision, fluvial sedimentation, and pedogenesis in SW South Dakota …
The Big Cottonwood Creek member: a new member of the Chadron formation in Northwestern Nebraska
DO Terry, HE LaGarry - 1998 - pubs.geoscienceworld.org
Based on detailed lithologic correlations of the White River Group in Nebraska and South
Dakota, we revise and redescribe the Chadron Formation. We redescribe the upper two …
Dakota, we revise and redescribe the Chadron Formation. We redescribe the upper two …
Cap structures as diagnostic indicators of silcrete origin
JS Ullyott, DJ Nash, JM Huggett - Sedimentary Geology, 2015 - Elsevier
Cap structures within silcretes have long been used as a diagnostic indicator of pedogenic
silicification. However, a growing number of studies of the micromorphology of non …
silicification. However, a growing number of studies of the micromorphology of non …