Titlebook: Seismic Stratigraphy; Robert E. Sheriff Book 1980 Robert E. and Margaret S. Sheriff 1980 Stratigraphy.economic geology

凝结剂

FECK

978-0-934634-51-9Robert E. and Margaret S. Sheriff 1980

CANT

Introduction,Sedimentary rocks normally exist in more-or-less parallel layers or strata, different rock types being distinguished by different physical features. Lyell (see figure 1.1), in . (1830), quotes Strabo as writing in . about A.D. 20:

Transfusion

中国纪念碑

Immortal

Velocity and Resolution,Velocity measurements are often used to determine the nature of sediments, so it is appropriate to examine the sensitivity of velocity to those factors we wish to determine and also to other factors that affect the reliability of determinations.

ETCH

翻布寻找

he nature of the earth. But their voices are obscured by many irrelevancies. They speak in a high-noise environment, and we have been able to decipher only a small portion. However, things are looking up: better tech­ niques are lessening the irrelevancies, and we are learning to read. In exploratio

Obsessed

Seismic Sequence Analysis: The Geologic Models,n seismic observations. To some extent seismic sequence analysis uses duplicate nomenclature—one set from geologic concepts and another from seismic observations. We often identify elements of these different sets with each other and mix up the nomenclature because of this cross-identification. For

Processes

Seismic Sequence Analysis: The Implementation,reflectors is important because the mapping of unconformities is the key to seismic sequence analysis. Unconformities represent a hiatus in deposition during which conditions are apt to have changed, so that there are different lithologies above and below, thus producing a contrast and a reflection.