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 |
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
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 |
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.
Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1968
Title | Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1968 PDF eBook |
Author | George Vincent Cohee |
Publisher | |
Pages | 392 |
Release | 1970 |
Genre | Geology, Stratigraphic |
ISBN |
Geological Survey Bulletin
Title | Geological Survey Bulletin PDF eBook |
Author | |
Publisher | |
Pages | 36 |
Release | 1973 |
Genre | Geology |
ISBN |
Geochemical Prospecting Using Water from Small Streams in Central South Carolina
Title | Geochemical Prospecting Using Water from Small Streams in Central South Carolina PDF eBook |
Author | Henry Bell |
Publisher | |
Pages | 216 |
Release | 1973 |
Genre | Geochemical prospecting |
ISBN |
Water from 69 small streams in the Carolina slate belt was sampled and tested for specific conductance, hardness, pH, and iron and chloride content."
Joint Resolution Designating the Week of November 8 Through November 14, 1987, as "National Food Bank Week."
Title | Joint Resolution Designating the Week of November 8 Through November 14, 1987, as "National Food Bank Week." PDF eBook |
Author | United States |
Publisher | |
Pages | 162 |
Release | 1987 |
Genre | Geology |
ISBN |
Cordilleran Metamorphic Core Complexes
Title | Cordilleran Metamorphic Core Complexes PDF eBook |
Author | Max D. Crittenden |
Publisher | Geological Society of America |
Pages | 497 |
Release | 1980 |
Genre | Science |
ISBN | 0813711533 |