Cenozoic mechanisms

Koons PO, Zeitler PK, Chamberlain CP, Craw D, Meltzer AS (2002) Mechanical links between erosion and metamorphism in Nanga parbat, Pakistan Himalaya. Am J Sci 302 749-773 Kutzbach JE, Guetter PJ, Ruddiman WF, Prell WL (1989) Sensitivity of climate to Late Cenozoic uplift in southern Asia and the American West Numerical Experiments. J Geophys Res 94 18,393 — 18,407 Lawrence JR, Rashkes Meaux J (1993) The stable isotope composition of ancient kaolinites of North America. In Climate Change in Continental Isotopic Records. Swart, PK, Lohmann KC, McKenzie J, Savin S (eds) Geophysical Monograph 78 249-261... 

Blum J. D. (1997) The effect of late Cenozoic glaciation and tectonic uplift on silicate weathering rates and the marine Sr/ Sr record. In Tectonic uplift and climate change (ed. W. F. e. Ruddiman). Plenum, New York, pp. 259-288. Blum J. D. and Erel Y. (1995) A silicate weathering mechanism linking increases in marine Sr/ Sr with global glaciation. Nature 373, 415-418. 

It is clear that the relative importance of pressure solution as a mechanism of IGV decline increases markedly with depth. It also varies in importance among units of different bulk composition. For example, pressure solution appears to be widespread in sandstones of plutonic derivation (Thomas et al, 1993 Oelkers et al, 1996 Spotl et al, 2000), but not in the largely volcanogenic Cenozoic sandstones of the Gulf of Mexico basin (Land et al, 1987 Land and Milliken, 2000). Controls that appear to favor the development of pressure solution include abundant potassium-rich micaceous debris, a history of meteoric water incursion, and elevated temperature (>100 °C ). 

This mechanism has been proposed as a linkage between Himalayan uplift and the progressive cooling of the Cenozoic climate (Ruddiman et al. 1989 Raymo and Ruddi-man 1992 Raymo 1994 see also Ruddiman 1997). 

Most climate change hypotheses for the Cenozoic focus on either oceanic heat transport and/or greenhouse gas concentrations. Each mechanism produces different responses in the equatorial-to-pole and surface-to-deep temperature gradients. An increase in the meridional heat transport generally cools the tropics and warms the poles. If poleward transport of heat decreases, then the tropics will warm and the poles will cool. Variations in greenhouse gas concentrations should produce similar changes in both the tropical and polar regions. 

Guo Xingwei, Shi Xiaobin, Qiu Xuelin, et al. Cenozoic subsidence in Bohai Bay Basin characteristics and dynamic mechanism. Geotectonica et Metallogenia, 2007 31(3) 273-280. 

The Transantarctic Mountains are considered to be a rift-flank uplift, yet no substantial isostatic uplift is expected in a transtensional setting, and the mechanism of large-magnitude Cenozoic uplift of the mountains remains problematical. 

Heinrich MR (ed) (1976) Extreme environments Mechanisms of microbial adaptation. Academic, New York HiU RS, Harwood DM, Webb PM (1991) Last remnant of Antarctica s Cenozoic flora Nothofagus of the Sirius Group, Transantarctic Mountains. Abstracts, Eighth International Gondwana Symposium, June 24-28, Hobart, Tasmania Hirsch P, Hoffman B, Gallikowski CA, Mevs U, Siebert J, Sittig M (1988) Diversity and identification of heterotrophs from Antarctic rocks of the McMurdo Dry VaUeys (Ross Desert). Polarforschung 58 261... 

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