-
3
-
-
0002563733
-
-
M. R. House, C. T. Scrutton, M. G. Bassett, Eds, Palaeontological Association, London
-
P. H. Heckel, B. J. Witzke, in The Devonian System: A Palaeontological Association International Symposium, M. R. House, C. T. Scrutton, M. G. Bassett, Eds. (Palaeontological Association, London, 1979), vol. 23, pp. 99-123.
-
(1979)
The Devonian System: A Palaeontological Association International Symposium
, vol.23
, pp. 99-123
-
-
Heckel, P.H.1
Witzke, B.J.2
-
5
-
-
33749238879
-
-
R. Sridhar et al., Science 313, 345 (2006).
-
(2006)
Science
, vol.313
, pp. 345
-
-
Sridhar, R.1
-
8
-
-
36448955477
-
-
Peterson (7) reports consistency values (vector mean strength) for the dip directions of eolian sandstones from western United States paleowind indicators. These factors are high (above 0.80) for nearly all of the Pennsylvanian through Early Jurassic sandstones and many are well above 0.90. The lowest factors (0.67 and 0.75) are for the most areally extensive unit (the Navajo Sandstone) and, based on the location of this sandstone formation, likely reflect key geographic differences in the ancient wind field (that is, the arc connecting the trades and tropical westerlies) that are fundamental to our results.
-
Peterson (7) reports consistency values (vector mean strength) for the dip directions of eolian sandstones from western United States paleowind indicators. These factors are high (above 0.80) for nearly all of the Pennsylvanian through Early Jurassic sandstones and many are well above 0.90. The lowest factors (0.67 and 0.75) are for the most areally extensive unit (the Navajo Sandstone) and, based on the location of this sandstone formation, likely reflect key geographic differences in the ancient wind field (that is, the arc connecting the trades and tropical westerlies) that are fundamental to our results.
-
-
-
-
10
-
-
2142755890
-
-
D. B. Loope, M. B. Steiner, C. M. Rowe, N. Lancaster, Sedimentology 51, 315 (2004).
-
(2004)
Sedimentology
, vol.51
, pp. 315
-
-
Loope, D.B.1
Steiner, M.B.2
Rowe, C.M.3
Lancaster, N.4
-
14
-
-
0035282812
-
-
F. Fluteau, J. Besse, J. Broutin, G. Ramstein, Palaeogeogr. Palaeoclimatol. Palaeoecol. 167, 39 (2001).
-
(2001)
Palaeogeogr. Palaeoclimatol. Palaeoecol
, vol.167
, pp. 39
-
-
Fluteau, F.1
Besse, J.2
Broutin, J.3
Ramstein, G.4
-
15
-
-
36448930999
-
-
Paleomagnetic evidence indicates that (relative to the North American craton) the Colorado Plateau has been structurally rotated clockwise about 6° since the Late Carboniferous (20). Counterclockwise rotation of the paleowind vectors (derived from Permian through Early Jurassic rocks) to correct for this deformation would make the wind vectors in the southern Colorado Plateau even more westerly and makes placement of Jurassic strata in the subtropical trade-wind belt even more anomalous.
-
Paleomagnetic evidence indicates that (relative to the North American craton) the Colorado Plateau has been structurally rotated clockwise about 6° since the Late Carboniferous (20). Counterclockwise rotation of the paleowind vectors (derived from Permian through Early Jurassic rocks) to correct for this deformation would make the wind vectors in the southern Colorado Plateau even more westerly and makes placement of Jurassic strata in the subtropical trade-wind belt even more anomalous.
-
-
-
-
17
-
-
36448966176
-
-
M. B. Steiner, in Mesozoic Paleogeography of the West-Central United States, M. W. Reynolds, E. D. Dolly, Eds. (The Rocky Mountain Section, Society of Economic Paleontologists and Mineralogists, Denver, CO, 1983), pp. 1-11.
-
M. B. Steiner, in Mesozoic Paleogeography of the West-Central United States, M. W. Reynolds, E. D. Dolly, Eds. (The Rocky Mountain Section, Society of Economic Paleontologists and Mineralogists, Denver, CO, 1983), pp. 1-11.
-
-
-
-
21
-
-
36448939524
-
-
C. R. Scotese, PALEOMAP; www.scotese.com/jurassic.htm.
-
C. R. Scotese, PALEOMAP; www.scotese.com/jurassic.htm.
-
-
-
-
24
-
-
33744490657
-
-
W. D. Collins et al., J. Clim. 19, 2122 (2006).
-
(2006)
J. Clim
, vol.19
, pp. 2122
-
-
Collins, W.D.1
-
27
-
-
36448979685
-
-
This work was supported by a grant from NSF to D.B.L. and C.M.R. The authors thank C. R. Scotese for providing topographic data for his Jurassic paleogeography reconstruction. Computing support was provided by the National Center for Atmospheric Research and the University of Nebraska Research Computing Facility
-
This work was supported by a grant from NSF to D.B.L. and C.M.R. The authors thank C. R. Scotese for providing topographic data for his Jurassic paleogeography reconstruction. Computing support was provided by the National Center for Atmospheric Research and the University of Nebraska Research Computing Facility.
-
-
-
|