The Miocene Purple Mountain Flora of Western Nevada

The Miocene Purple Mountain Flora of Western Nevada PDF

Author: Daniel I. Axelrod

Publisher: Univ of California Press

Published: 1995-01-01

Total Pages: 120

ISBN-13: 9780520097971

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In this study, nine florules from the Chloropagus Formation near Fernley, Nevada, are dated at 14.7-13.4 million years. The author finds that dominant mixed conifer forest and sclerophyll woodland species of the Sierra Nevada-Klamath region replaced exotic deciduous hardwoods in the two lowest sites. He concludes that this change reflects the loss of adequate summer rain as upwelling from a colder ocean resulted from spreading East Antarctic ice.

Tectonic Boundary Conditions for Climate Reconstructions

Tectonic Boundary Conditions for Climate Reconstructions PDF

Author: Thomas J. Crowley

Publisher: Oxford University Press, USA

Published: 1998

Total Pages: 312

ISBN-13: 9780195112450

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In recent years, efforts to integrate solid earth geophysical studies and climate studies have progressed slowly, but this volume responds to the deficiency with an in-depth examination of climate modeling. Written by eminent figures from both disciplines, it focuses on the role of tectonic boundary conditions for paleoclimate reconstruction at the same time it presents background material on the impact of tectonic changes on climate and the uncertainties in tectonic boundary conditions.

A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California

A Miocene (10-12 Ma) Evergreen Laurel-Oak Forest from Carmel Valley, California PDF

Author: Daniel I. Axelrod

Publisher: Univ of California Press

Published: 2000-06-12

Total Pages: 68

ISBN-13: 9780520915992

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This is a study of the Miocene Carmel flora of California, an evergreen laurel–oak forest that grew in a mild temperate (mean annual temperature of 15 degrees C), frost-free climate, with annual precipitation of about 760 mm (30 in.). Collectively, the Carmel and other Miocene floras like the San Pablo and Temblor (broad-leafed deciduous trees, with few evergreen species), the Puente (evergreen oak forest with chaparral species), the Mint Canyon, Ricardo, and Tehachapi (numerous arid subtropical scrub associated with oak woodland and chaparral species) suggest they foreshadowed a similar distribution of the different California vegetation zones today.

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