Late Paleozoic climate dynamics revealed by comparison of ice-proximal stratigraphic and ice-distal isotopic records

2008 ◽  
pp. 331-342 ◽  
Author(s):  
T.D. Frank ◽  
L.P. Birgenheier ◽  
I.P. Montañez ◽  
C.R. Fielding ◽  
M.C. Rygel
Keyword(s):  
Climate Dynamics ◽  
Late Paleozoic ◽  
Isotopic Records

Nonlinear Climate Dynamics

2009 ◽  
Author(s):  
Henk A. Dijkstra
Keyword(s):  
Climate Dynamics

Late Paleozoic foraminifera from southern Chile

10.3133/pp858 ◽  
1976 ◽  
Author(s):  
Raymond Charles Douglass ◽  
Merlynd Keith Nestell
Keyword(s):  
Late Paleozoic ◽  
Southern Chile

Subsurface stratigraphy and basin-fill architecture of the late Paleozoic eastern Taos trough, northern New Mexico, U.S.A.

2020 ◽  
Vol 57 (3) ◽  
pp. 149-176
Author(s):  
Nur Uddin Md Khaled Chowdhury ◽  
Dustin E. Sweet
Keyword(s):  
New Mexico ◽  
Sediment Accumulation ◽  
Late Paleozoic ◽  
North Central ◽  
The North ◽  
Basement Rocks ◽  
Basin Geometry ◽  
Deformation Event ◽  
Thrust System ◽  
Basin Fill

The greater Taos trough located in north-central New Mexico represents one of numerous late Paleozoic basins that formed during the Ancestral Rocky Mountains deformation event. The late Paleozoic stratigraphy and basin geometry of the eastern portion of the greater Taos trough, also called the Rainsville trough, is little known because the strata are all in the subsurface. Numerous wells drilled through the late Paleozoic strata provide a scope for investigating subsurface stratigraphy and basin-fill architecture of the Rainsville trough. Lithologic data obtained predominantly from petrophysical well logs combined with available biostratigraphic data from the greater Taos trough allows construction of a chronostratigraphic framework of the basin fill. Isopach- and structure-maps indicate that the sediment depocenter was just east of the El Oro-Rincon uplift and a westerly thickening wedge-shaped basin-fill geometry existed during the Pennsylvanian. These relationships imply that the thrust system on the east side of the Precambrian-cored El Oro-Rincon uplift was active during the Pennsylvanian and segmented the greater Taos trough into the eastern Rainsville trough and the western Taos trough. During the Permian, sediment depocenter(s) shifted more southerly and easterly and strata onlap Precambrian basement rocks of the Sierra Grande uplift to the east and Cimarron arch to the north of the Rainsville trough. Permian strata appear to demonstrate minimal influence by faults that were active during the Pennsylvanian and sediment accumulation occurred both in the basinal area as well as on previous positive-relief highlands. A general Permian decrease in eustatic sea level and cessation of local-fault-controlled subsidence indicates that regional subsidence must have affected the region in the early Permian.

THE OXYGEN AND CARBON ISOTOPIC RECORDS OF MIOCENE SEDIMENTS IN THE TIANSHUI BASIN OF THE NORTHESTERN TIBETAN PLATEAU AND THEIR PALEOCLIMATIC IMPLICATIONS

2011 ◽  
Vol 31 (3) ◽  
pp. 69-78 ◽  
Author(s):  
Zhanfang HOU ◽  
Jun ZHANG ◽  
Chunhui SONG ◽  
Jijun LI ◽  
Jia LIU ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Carbon Isotopic ◽  
Tianshui Basin ◽  
Isotopic Records
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