Lower Cretaceous Stratigraphy in Southeastern Arizona

Lower Cretaceous Stratigraphy in Southeastern Arizona
Title Lower Cretaceous Stratigraphy in Southeastern Arizona PDF eBook
Author Alexander Stoyanow
Publisher
Pages 169
Release 1949
Genre
ISBN

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Lower Cretaceous Stratigraphy in Southeastern Arizona

Lower Cretaceous Stratigraphy in Southeastern Arizona
Title Lower Cretaceous Stratigraphy in Southeastern Arizona PDF eBook
Author Alexander Stoyanow
Publisher Geological Society of America
Pages 205
Release 1949
Genre Geology
ISBN 0813710383

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Fossil Record 4

Fossil Record 4
Title Fossil Record 4 PDF eBook
Author Robert M. Sullivan
Publisher New Mexico Museum of Natural History and Science
Pages 347
Release 2015
Genre Fossils
ISBN

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New and Revised Stratigraphic Names in the Santa Rita Mountains of Southeastern Arizona

New and Revised Stratigraphic Names in the Santa Rita Mountains of Southeastern Arizona
Title New and Revised Stratigraphic Names in the Santa Rita Mountains of Southeastern Arizona PDF eBook
Author Harald Drewes
Publisher
Pages 24
Release 1968
Genre Geology
ISBN

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Recent work provides the basis for establishing a stratigraphic column in the Santa Rita Mountains of Santa Cruz and Pima Counties of southeastern Arizona. Thirteen formations of this column are here defined and one is revised. One new formation is a Precambrian granodiorite. Ten new formations are Mesozoic units that include plutonic, volcanic, and continental sedimentary rocks. The revised formation is the Upper Cretaceous Fort Crittenden Formation of Stoyanow (1949), dominantly a sedimentary unit. Two new formations are volcanic and sedimentary rocks of Tertiary age. Many radiometric dates supplement the sparse fossil record in corroborating or redefining the ages that had been assigned to many units on the basis of their geologic relations and in establishing the ages of other units.

Mesozoic Stratigraphy of the Santa Rita Mountains, Southeast of Tucson, Arizona

Mesozoic Stratigraphy of the Santa Rita Mountains, Southeast of Tucson, Arizona
Title Mesozoic Stratigraphy of the Santa Rita Mountains, Southeast of Tucson, Arizona PDF eBook
Author Harald Drewes
Publisher
Pages 92
Release 1971
Genre Geology
ISBN

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Additional title page description: A description of seven thick sequences of volcanic and sedimentary rocks and an interpretation of the sporadically active continental environments in which they were deposited.

Studies on the Mesozoic of Sonora and adjacent areas

Studies on the Mesozoic of Sonora and adjacent areas
Title Studies on the Mesozoic of Sonora and adjacent areas PDF eBook
Author César Jacques-Ayala
Publisher Geological Society of America
Pages 226
Release 1995-01-01
Genre Science
ISBN 0813723019

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Vertebrate Paleontology in Arizona

Vertebrate Paleontology in Arizona
Title Vertebrate Paleontology in Arizona PDF eBook
Author Andrew B. Heckert
Publisher New Mexico Museum of Natural History and Science
Pages 215
Release 2005
Genre Animals, Fossil
ISBN

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