Stratigraphy and Correlation of the Marine Jurassic Deposits of Central Oregon

Marine Jurassic rocks, Jurassic deposits, carboniferous limestones, Ochoco Range, Donovan fossils

Lupher, Ralph Leonard ; Woodring, Wendell P. (advisor)

University:California Institute of Technology

Department:Geological and Planetary Sciences

关键词: Marine Jurassic rocks, Jurassic deposits, carboniferous limestones, Ochoco Range, Donovan fossils;   

Others  :  https://thesis.library.caltech.edu/3301/9/Lupher_rl_1930.pdf

美国|英语

来源: Caltech THESIS

【 摘 要 】

Marine Jurassic rocks occupy an area of more than 200 square miles in the pre-Tertiary area of Central Oregon. Eight formations are recognized in a series that ranges in age from the middle Lias to the Callovian of the upper Jura.The faunas are grouped into four chronologic divisions which are not coincident with the stratigraphi divisions.The two sets of divisions may be compared in the following manner: [See Abstract in PDF for more information].