EARTH SCIENCES - Notable Research and Discoveries Part 3 ppsx

... Available on- line. URL: http://www.sciencedaily.com/releases/2007/08/070802 13 FOS _Earth Science_DC.indd 32 2/8/10 10:56: 53 AM earth ScienceS 36 mathematical behavior of elec- tric and magnetic ... between electricity and magnetism. e force acts perpendicular (at a 90 degree Origin and Variability of Earth s Magnetic Field FOS _Earth Science_DC.indd 43 2/8/10 10:57 :...

Ngày tải lên: 09/08/2014, 11:20

... 136 – 138 , 148 characteristics 130 , 131 and climate change 148–151 conservation 1 43 144 desalination 142–1 43, 154 digging wells 139 –142 droughts 129 Earth s amounts of 131 human needs 130 – 131 hydrologic ... 130 – 131 hydrologic modeling and prediction 145, 145–146 origins of 131 – 132 pollution 139 rainfall distribution 132 , 132 m shortages 128– 130 , 139 , 140–...

Ngày tải lên: 09/08/2014, 11:20

... Includes bibliographical references and index. ISBN 97 8-0 -8 16 0-7 44 2-6 (hardcover) ISBN 97 8-1 - 438 1-2 96 8-6 (e-book) 1. Geology. 2. Earth sciences. I. Title QE501.K527 2010 550—dc22 2009020269 Facts ... Cataloging-in-Publication Data Kirkland, Kyle. Earth sciences: notable research and discoveries / Kyle Kirkland. p. cm.—(Frontiers of science) I...

Ngày tải lên: 09/08/2014, 11:20

... other side of the earthquake’s origin. Exploring Earth s Depths FOS _Earth Science_DC.indd 13 2/8/10 10:56 :34 AM earth ScienceS 24 aligns compass needles and deects charged particles in space, ... lithosphere, and is hot enough to deform or  ow. An important component of this  ow is a slow up -and- Two plates separate and move apart to form part of the Mid-Atlantic Ridge...

Ngày tải lên: 09/08/2014, 11:20

... eruptions and why they occur, hazards such as lava ows and ash clouds, and the myths and allures of volcanoes. FOS _Earth Science_DC.indd 94 2/8/10 10:58 :38 AM earth ScienceS 96 2004): 33 8 34 3. Montelli ... helium -3 (which has three particles in the nucleus, two protons and one neu- tron) and helium-4 (which has two protons and two neutrons in the FOS _Earth Sci...

Ngày tải lên: 09/08/2014, 11:20

... funds. Panel members met and reviewed past and current research proj- ects from the United States, Europe, Japan, and Australia. The panel’s findings were detailed in a 37 2-page report, The Future ... PotEntIal and CaPaCIty e Mid-Atlantic Ridge and the Pacic’s Ring of Fire oer many geo- thermal energy opportunities, as do hot spots such as Hawaii. Geother- mal energy’s pot...

Ngày tải lên: 09/08/2014, 11:20

... darker and darker. And the old house is just a-vibrating like it was going to blow away. And I started trying to see my hand. And I kept bring- ing my hand up closer and closer and closer and ... ScienceS 130 As geologists gain a more complete understanding of Earth and its water distribution, locating and exploiting water resources such as un- derground sources will...

Ngày tải lên: 09/08/2014, 11:20

... scale. Predicting Earthquakes FOS _Earth Science_DC.indd 165 2/8/10 10:59 :33 AM earth ScienceS 160 shaking, though there is still danger from ying objects and buckling oors, and a powerful earthquake ... (2) and spreads (3) , extending throughout the fault (4). Predicting Earthquakes FOS _Earth Science_DC.indd 167 2/8/10 10:59 :36 AM 1 63 However, since observations are not...

Ngày tải lên: 09/08/2014, 11:20

... Ide. “Non-Volcanic Trem- or and Low-Frequency Earthquake Swarms.” Nature 446 (March 15, 2007): 30 5 30 7. e researchers discovered that the time course of certain tremors match that of low-frequency ... a major earthquake may have particular patterns at particular faults, and FOS _Earth Science_DC.indd 176 2/8/10 10:59:48 AM earth ScienceS 190 (February 19, 2002): 2,514–2,521....

Ngày tải lên: 09/08/2014, 11:20

... the pres- ervation or record of Earth s magnetic eld in the structure of rocks and Origin and Variability of Earth s Magnetic Field FOS _Earth Science_DC.indd 53 2/8/10 10:57 :37 AM 73 paleontologists—scientists ... Such an event might cause an “ava - lanche” of rocky material and lighter elements that compose the bound- FOS _Earth Science_DC.indd 58 2/8/10 10:57 :38 AM ea...

Ngày tải lên: 23/09/2012, 14:49