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Found 92 matches
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  1. ... BOUNDARY: CLAEYS, Philippe, Department of Geology, Vrije Universiteit Brussel, Pleinlaan 2, Brussel B-1050 Belgium, phclaeys@vub.ac.be 110-5 2:35 PM CRATER STRATIGRAPHY AND CARBONATE IMPACT SIGNATURES, LATE DEVONIAN ALAMO EVENT, NEVADA: PINTO, Jesús A. and WARME, John E., Geology and Geological Engineering ...
  2. ... , Arizona State Univ, Box 876305, Tempe, AZ 85287, jrice@asu.edu and ATHENA SCIENCE, Team The second phase of the MER Spirit mission, in Gusev crater, began when the rover entered the province of the Columbia Hills. The rover traveled over 3km to arrive at this destination. The Columbia Hills rise up ...
  3. ... in the first major field project of GLG 240 dealing with students' perception of terrain and geologic relations. The exercise centered on SP Crater, a young cinder cone and flow north of Flagstaff, AZ. The goals of the exercise were to increase 1) student confidence in self location, 2) recognition ...
  4. ... , CO 80104, and TEMPEL, Joe, Friends of Dinosaur Ridge, Morrison, CO 80465 178-5 2:45 PM NEW ANIMATIONS DEPICTING VOLCANIC FEATURES AND PROCESSES AT CRATERS OF THE MOON NATIONAL MONUMENT AND PRESERVE, IDAHO: BROSSY, Cooper, Craters of the Moon National Monument and Preserve, Bureau of Land Management ...
  5. ... WFPC2 did not indicate the presence of red hematite in Meridiani Planum at scales of 10-20 km/pixel. Opportunity came to rest within a 20 m diameter crater dubbed Eagle. Early multispectral visible and near infrared observations by the rover’s Pancam of in situ rocks exposed on the inner wall of Eagle ...
  6. ... the structure. Within the structure, the bedrock aquifer is hosted by carbonate and granitic impact breccias and is recharged through overlying crater-fill Jurassic red beds and karstic evaporites consisting of gypsum, anhydrite and minor glauberite. From the karstic uplands to discharge points 10 km ...
  7. ... of the outer ring consists of low ridges and broad valleys that developed on a carbonate impact breccia. This ring marks the extent of the transient crater. The inner and outer rings are nearly coincident on the southwestern margin, where Mississippian strata are faulted and cut out below the sub-Pennsylvanian ...
  8. ... Rovers Spirit and Opportunity have been conducting geologic exploration of the martian surface since January, 2004. Spirit landed at Gusev Crater, and for the first 160 sols of its mission it explored the basalt-covered plains of the crater floor. After a traverse of over 3 km, Spirit arrived at the ...
  9. ... . Based on geochemical data, they are linked respectively to the Popigai (Siberia, 100 km in diameter) and the Chesapeake Bay (80 km in diameter) craters, dated at 35.7 and 35.5 Ma. Less precisely constrained by isotope-dating, the smaller Mistastin, Wanapitei and Logoisk craters may be part of the same ...
  10. ... into the ocean basins excavate the mantle, the dominant mineral in impact spherules will be olivine. In the ejecta from a 150 km wide, late Miocene crater in the mid-Pacific (Ewing crater), the dominant spherical form is a serpentinized olivine spherule. This spherule type may be the most common form ...

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