Geological Exploration of the Southern Rock Creek Valley in by James V. O'Connor

By James V. O'Connor

About The Product

Published through the yankee Geophysical Union as a part of the Field journey Guidebooks Series.

Rock Creek Park is a different position for learning geology. based because the urban park in 1890, Rock Creek Park serves as an oasis within the city setting. Rock Creek Valley is a steep craggy Piedmont eroded sector the place you may notice the bedrock, keep on with the evolution of the autumn Zone,and degree the topographically remoted Coastal undeniable gravels. determine 1 is the map of the stops to monitor the overall geology.

The Rock Creek Valley is a textbook for learn at the early Paleozoic historical past. Metasedimentary and igneous rocks show the marine and tectonic tales of a proto-Atlantic Ocean. Metamorphic mineralalogy is determined in folds, faults, and fracture structures. Paleozoic tectonics is roofed at the bluffs unconformable by way of gravels of the Mesozoic and Cenozoic. The Cretaceous ancestral Potomac sediments also are transformed into the decrease elevation sediment deposits of overdue Cenozoic age (Miocene ? - Holocene). determine 2 is a common geology map of the District. Rock Creek served as a box web site for the fifth overseas Congress for Geologists in 1891. we'll revisit a few of those self same stops nearly a century later and persist with within the footsteps of the early American pioneers: W. J. McGee, N. H. Darton, A. Keith, G. Williams, and B. Willis.


Show description

Read Online or Download Geological Exploration of the Southern Rock Creek Valley in DC: Washington, D.C., July 13, 1989 PDF

Similar nonfiction_9 books

Fungal Associations

This re-creation of Fungal institutions specializes in mycorrhizas, lichens and fungal-bacterial symbioses. it's been thoroughly revised, up-to-date and elevated. well known specialists current thorough experiences and speak about the latest findings on molecular interactions among fungi and crops or micro organism that result in morphological adjustments and novel homes within the symbionts.

Social Bioarchaeology

Illustrates new methodological instructions in studying human social and organic edition deals a wide range of analysis on previous populations worldwide Explains the vital gains of bioarchaeological study by way of key researchers and confirmed specialists world wide content material: bankruptcy 1 development a Social Bioarchaeology (pages 1–11): Sabrina C.

HIV Protocols

In HIV Protocols, Nelson Michael and Jerome Kim have geared up a suite of state of the art strategies crucial for learning the molecular biology, virology, and immunology of the HIV virus. The tools conceal a vast variety of study pursuits, together with quantitation of viral genomes, HIV promoter functionality, B-cell epitope mapping, viral coreceptor utilization, and measurements of T-cell functionality.

Interleukin Protocols

Interleukins, a kin of proteins that control immunity and irritation during the physique, also are eager about autoimmune ailment (rheumatoid arthritis, a number of sclerosis, and asthma); are implicated in such different stipulations as melanoma, myocardial infarction, and melancholy; and feature worth within the analysis and diagnosis of many illnesses.

Extra info for Geological Exploration of the Southern Rock Creek Valley in DC: Washington, D.C., July 13, 1989

Sample text

The use of computers allows for the handling of complicated models for real data sets. Modeling, computation, and visualization yield reliable simulations of processes and products. Mathematics is the “raw material” for the models and the essence of each computer simulation. As the key technology, it translates the images of the real world to models of the virtual world, and vice versa (cf. Fig. 5 for an example in seismic tomography). The special importance of mathematics as an interdisciplinary science (see also Neuzert and Rosenberger 1991; Beutelspacher 2001; Pesch 2002) has been acknowledged increasingly within the last few years in technology, economy, and commerce.

Due to the ideal frequency localization and the simultaneous dispensation with localization in space, local data modifications influence all the Fourier coefficients (that have to be determined by global integration). Consequently, this also leads to global modifications of the data representations in case of local changes. , the oscillations grow in number, while the amplitudes become smaller and Fig. 7 Uncertainty principle and its consequences for space–frequency localization 16 W. Freeden Fig.

These changes have been accelerated dramatically. The main reasons for most of these phenomena are the unrestricted growth in the industrial societies (population and consumption, especially of resources, territory, and energy) and severe poverty in the developing and newly industrialized countries. The dangerous aspect is that extreme changes have taken place within a very short time; there has been no comparable development in the dynamics of the system Earth in the past. Changes brought about by man are much faster than changes due to natural fluctuations.

Download PDF sample

Rated 4.31 of 5 – based on 36 votes