Download or read book Contribution from the Department of Geology Columbia University written by Columbia University Department of Geology and published by . This book was released on 1903 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Geological Department of Columbia University written by and published by . This book was released on 1907 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Department of Geology Columbia University written by Columbia University. New York, NY. Department of Geology and published by . This book was released on 1903 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Geological Department of Columbia University written by Ralph Carpenter Blanchard and published by . This book was released on 1913 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Geological Department of Columbia University written by Columbia University. Dept. of Geology and published by . This book was released on 1903 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Department of Geology Columbia University written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Department of Geology of Columbia University written by and published by . This book was released on 1892 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Geological Department of Columbia University written by and published by . This book was released on 1920 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions from the Geological Department of Columbia University Volume 28 written by Columbia University. Geology and published by Rarebooksclub.com. This book was released on 2013-09 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ... decreased solubility as determined by the slope of the solubilitysaturation curve, line AL in Figure 4. The fact that the "secondary" blebs of potash feldspar in the original member, rich in soda, are not seen, even under high magnifications (950 diameters). testifies to the nearly vertical character of the corresponding curve, BM in Figure 4. Extinction angles, crushed fragments: Popular: Microcline microperthite Technical: Microcline hypoperthite. "Orthoclase," near Unionville, Chester County, Pennsylvania. (Specimen 996.) Microscopic examination, thin section: Typical microcline microperthite with inclusions of diopside, quartz, and untwinned feldspar thought to be anorthoclase. A. Microcline microperthite (hypoperthitc), calle(l"Amazonstone," Mineral Hill, Pennsylvania. Polarized light. X30. Specimen 964. B. Microcline microperthite (hypoperthite), called "Amazonstone," near Florissant, California. Polarized light. X30. Specimen 971. Extinction angles, crushed fragments: Potash phase........ (010)........... 7.o (001)........... 17.0 Soda phase.......... (010)........... 13.0 (001)........... 1.o Inferred Composition Potash Phase Soda Phase K-feldspar........... 79.0 2.0 Na-feldspar.......... 19.0 89.0. Ca-feldspar.......... 2.0 9.0 QUANTITATIVE MICROSCOPIC ANALYSIS Phase Percentage K-feldspar Na-feldspar Ca-feldspar Silim Sodamicrocline.... 71.5 79.0 19 2.0 0. Oligoclase......... 24. 1 2.0 89 9.0 0. Quartz.................................................. 100 Sodamicrocline............... 56.5 13 1.4........ Oligoclase.....................5 21 2. 2........ Quartz......................................._........... 4.4 Total.................... 57.0 35.0 3.6 4.4 Classification: 13....

Download or read book Plate Tectonics and Great Earthquakes written by Lynn R. Sykes and published by Columbia University Press. This book was released on 2019-06-04 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of plate tectonics transformed earth science. The hypothesis that the earth’s outermost layers consist of mostly rigid plates that move over an inner surface helped describe the growth of new seafloor, confirm continental drift, and explain why earthquakes and volcanoes occur in some places and not others. Lynn R. Sykes played a key role in the birth of plate tectonics, conducting revelatory research on earthquakes. In this book, he gives an invaluable insider’s perspective on the theory’s development and its implications. Sykes combines lucid explanation of how plate tectonics revolutionized geology with unparalleled personal reflections. He entered the field when it was on the cusp of radical discoveries. Studying the distribution and mechanisms of earthquakes, Sykes pioneered the identification of seismic gaps—regions that have not ruptured in great earthquakes for a long time—and methods to estimate the possibility of quake recurrence. He recounts the various phases of his career, including his antinuclear activism, and the stories of colleagues around the world who took part in changing the paradigm. Sykes delves into the controversies over earthquake prediction and their importance, especially in the wake of the giant 2011 Japanese earthquake and the accompanying Fukushima disaster. He highlights geology’s lessons for nuclear safety, explaining why historic earthquake patterns are crucial to understanding the risks to power plants. Plate Tectonics and Great Earthquakes is the story of a scientist witnessing a revolution and playing an essential role in making it.

Download or read book A Contribution to the Structural Geology of Central Massachusetts written by Alja Robinson Crook and published by . This book was released on 1932 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions to the Stratigraphy and Palaentology of the Goshen Hole Area Wyoming written by Erich Maren Schlaikjer and published by . This book was released on 1935 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Contribution to the Geology of the Northern Black Hills written by John Duer Irving and published by . This book was released on 1899 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Cortlandt Series and Its Emery Deposits written by Gaillard Sherburne Rogers and published by . This book was released on 1911 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Poughkeepsie Quadrangle New York written by Clarence Everett Gordon and published by . This book was released on 1911 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contributions to Economic Geology short Papers and Preliminary Reports 1931 32 written by Gerald Francis Loughlin and published by . This book was released on 1933 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Mineralography of the Feldspars written by Harold Lattimore Alling and published by . This book was released on 1921 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: