Results 71 to 80 of about 3,414 (218)

Middle Triassic paleosols and paleoclimate of Antarctica

, 1998
The Lashly Formation in the Allan Hills of southern Victoria Land, Antarctica, is now at a latitude of 768S and during the Middle Triassic was at least 708S. The combined evidence of fossil roots and soils indicates a paleoclimate unusual for such a high
Retallack, G.J., Alonso Zarza, Ana María   +1 more
core  

Middle Permian Rhizoid Limestones of the Kazan Volga Region (Russia)

Georesursy
This paper presents the results of a study of rhizoid limestones of the Urzhumian age, Middle Permian, on the example of one of the typical layers using field and laboratory methods to clarify their depositional settings.
F. A. Mouraviev, T. V. Kropotova, N. M. Khasanova, E. O. Statsenko   +3 more
doaj   +1 more source

Examining Local Climate Variability in the Late Pennsylvanian Through Paleosols: An Example from the Lower Conemaugh Group of Southeastern Ohio, USA

Geosciences, 2012
Three temporally close stratigraphic sections were excavated in Glenshaw Formation of Athens County, Ohio. The described units are Upper Pennsylvanian (Gzhelian, 305–302 Ma) and located in the distal portion of the Appalachian foreland basin.
Daniel I. Hembree, Nicole D. Dzenowski
doaj   +1 more source

Mineralogical, geochemical and micromorphological evaluation of the Plio-Quaternary paleosols and calcretes from Karahamzall, Ankara (Central Turkey)

Geologica Carpathica, 2014
We present the mineralogical, micromorphological, and geochemical characteristics of the paleosols and their carbonates from Karahamzall, Ankara (Central Turkey).
Küçükuysal Ceren, Kapur Selim
doaj   +1 more source

Paleosols in the Triassic De Geerdalen and Snadd formations [PDF]

, 2015
Parts of the Late Triassic De Geerdalen Formation and the Middle to Late Triassic Snadd Formation have been investigated through facies analysis of outcrop and core data. The purpose has been to identify paleosols, relate them to the overall depositional
Enga, Jonas
core   +1 more source

Recognizing Vertical and Lateral Variability in Terrestrial Landscapes: A Case Study from the Paleosols of the Late Pennsylvanian Casselman Formation (Conemaugh Group) Southeast Ohio, USA

Geosciences, 2012
The Upper Pennsylvanian Casselman Formation of southeastern Ohio contains four distinct paleosol types that formed in alluvial systems within the distal Appalachian foreland basin.
Daniel Hembree, Angeline Catena
doaj   +1 more source

Floodplain paleosols of moskva river basin: Chronology and paleoenvironment [PDF]

, 2018
© 2018 by the Arizona Board of Regents on behalf of the University of Arizona. Seven main periods of soil formation can be distinguished in the floodplain of the Moskva (Moscow) River, with the oldest paleosols dated to the Allerod age.

core  

New Dinosaur Ichnological, Sedimentological, and Geochemical Data from a Cretaceous High-Latitude Terrestrial Greenhouse Ecosystem, Nanushuk Formation, North Slope, Alaska

Geosciences
The Nanushuk Formation (Albian–Cenomanian) crops out over much of the central and western North Slope of Alaska, varying from ≈1500 to ≈250 m thick from west to northeast.
Anthony R. Fiorillo, Paul J. McCarthy, Grant Shimer, Marina B. Suarez, Ryuji Takasaki, Tsogtbaatar Chinzorig, Yoshitsugu Kobayashi, Paul O’Sullivan, Eric Orphys   +8 more
doaj   +1 more source

Late Tertiary and Early Pleistocene Paleosols in Northwestern Canada

, 1991
Late Tertiary paleosols occurring in the unglaciated portion of the Yukon Territory of northwestern Canada have either Podzolic or Luvisolic soil development.
Schweger, C.E., Tarnocai, C.
core  

Soils of arid ecosystems of Kalmykia in the late Holocene

Revista Mexicana de Ciencias Geológicas, 2018
Several dark-colored buried paleosols are studied in balkas (valley) in the south of Russia (Kalmykia Republic). The paleosols differ from modern soils by chemical and physical properties that indicate differences in the character of soil-forming ...
Alexandra A. Golyeva, Olga A. Chichagova
doaj