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Geosphere features top geoscience technology, including LiDAR, EarthScope, CHIRP, ALSM, and IODP
Date:4/23/2013

Ranging) or ALSM (Airborne Laser Swath Mapping). Using data structures and algorithms that access points directly from hard disk, point clouds much larger than a computer's main memory can by processed very efficiently. Examples of such processes include visualization, vegetation removal, hill-shading, or feature extraction. LiDAR Viewer is an open-source software for desktop and virtual reality environments combining off-line processing and real-time visualization.


Hybrid submarine flows comprising turbidity current and cohesive debris flow: Deposits, theoretical and experimental analyses, and generalized models
Peter J. Talling, National Oceanography Centre, European Way, Southampton, Hampshire SO14 3ZH, UK. Published online 17 Apr. 2013; http://dx.doi.org/10.1130/GES00793.1. Themed issue: Exploring the Deep Sea and Beyond.

This paper by Peter J. Talling summarizes a new framework for understanding debris flows that occur on the sea floor, which include some of the largest mass flows on our planet. These flows can break strategically important sea floor cables that carry 95% of transoceanic data traffic, including the internet. The flows help to form the largest sediment accumulations on earth, whilst ancient flows produced rocks that now hold important hydrocarbon reserves. Talling analyses how their behavior and deposits change as debris flow strength increases, and encompasses field observations from ancient rocks and the modern sea floor, laboratory tank experiments, and quantitative numerical modeling. It is the broadest ranging summary of submarine debris flows yet published.


Epeirogenic transients related to mantle lithosphere removal in the southern Sierra Nevada region, California: Part II. Implications of rock uplift and basin subsidence relations
J. Saleeby et al., Caltech Tectonics Observatory, California Institute of
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Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert

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