SDSU Geological Sciences - Seminar - John A. Izbicki

submitted by: tcarrasc
Sources of Fecal Indicator Bacteria in Urban Streams and Ocean Beaches, Santa Barbara, California; Fecal indicator bacteria (FIB) concentrations in urban streams and ocean beaches in Santa Barbara, Calif. can exceed water-quality standards for recreational water. During low flow, high FIB concentrations in urban streams were associated with point discharges from storm drains, and concentrations in urban streamflow varied three-fold over the course of a day as a result of small variations in...

SDSU Geological Sciences - Seminar - Frank Corsetti

submitted by: tcarrasc
Stromatolites: Myths and Legends; Stromatolites are classically interpreted as “organo-sedimentary structures”, where layers and doming/branching result from microbial mats. As such, they could be considered quintessential ‘astrobiologic’ structures—a stromatolite, as a macroscopic manifestation of microbial processes, would be much easier to image remotely (on Mars, for example) than a microbe. While there is no doubt that some (perhaps most) stromatolites on Earth were formed...

SDSU Geological Sciences - Seminar - Eleanora (Norrie) Robbins

submitted by: tcarrasc
Utilization of Geological Techniques to Help Solve an Archaeological Puzzle: When Did People Arrive in North America? Eleanora (Norrie) Robbins Department of Geological Sciences San Diego State University Knut Fladmark hypothesized that as soon as boat technology was developed 40,000 years ago, people probably traveled the oceans. The 40,000-year-ago shoreline is now below 150-160 ft (50 m) of water and an unknown thickness of sediment. So evidence for boat transport by maritime...

SDSU Geological Sciences - Seminar - Shuo Ma

submitted by: tcarrasc
A Physical Model for Widespread Near-Surface and Fault Zone Damage Induced by Earthquakes - Seismic observations indicate that material velocities at shallow depths decrease over a large area after large earthquakes. The reductions are widespread, and occur at distances of up to several source dimensions. A persistent low-velocity fault zone has also been documented extensively from seismic and geodetic observations, in which the velocity drops further after large earthquakes. Dynamic...

SDSU Geological Sciences - Thesis - Ben Slotnick

submitted by: tcarrasc
Biotic response of Tethyan bathyal ostracodes through the Eocene-Oligocene Transition from the Massignano Composite Stratotype Section (east central Italy) - The Eocene-Oligocene Transition (EOT) is marked by a double-stepped ~1.3‰ positive excursion in d18O over an ~300 kyr interval (i.e., Oi-1; Miller et al., 1991; Zachos et al., 1996; Coxall et al., 2005) and a deepening of the calcium compensation depth (CCD) interpreted to represent marked Antarctic glaciation and global...

SDSU Geological Sciences - Seminar - Clive Dorman

submitted by: tcarrasc
Tidal Bore on the Severn River - Tides progress up the Severn River in SW England as a tidal bore moving faster than 6 m/s. During spring tides, the leading edge of the bore can be up to 2 m high, taking more than an hour to travel from the lower portion of the river to past Gloucester. This is sufficient to attract surfers from around the world. The North Atlantic amphidromic system interacts with the broad continental shelf around the U.K. to produce a complicated field of large tidal...

SDSU Geological Sciences - Seminar - J. Fred Bair

submitted by: tcarrasc
Development Geology of the Antelope Shale: Section 1Y, Cymric Field, San Joaquin Valley, California - The Antelope Shale reservoir in Section 1Y, Cymric Field, San Joaquin Valley, California is one of Chevron’s key assets. The reservoir is a Miocene Age member of the Monterey Formation composed of Opal A (amorphous), Opal CT (cristobalite, tridimite) and Quartz phase diatomaceous deep water sediments. The Antelope Shale has an anomalously high average porosity of 58%, high initial oil...

Web 2.0 Panel

submitted by: dougramsey

A discussion with Brian Dear from Eventful.com, Seth Greenberg from Intuit.com and Turbotax, and Seth Sternberg from Meebo.com on Web 2.0, online enterpreneurship, user communities, advertising, technology and communication.

MicrobeWorld Video Ep. 11 - The Maloy Lab

submitted by: MicrobeWorld
MicrobeWorld visits The Maloy Lab at San Diego State University to talk with Professor Stanley Maloy and three grad students, Dave Matthews, Gerardo Perez and Veronica Casas, about their research. The Maloy Lab focuses on the genetics and physiology of Salmonella and bacteriophage that infect Salmonella. Maloy and his students use a combination of genetic, molecular, biochemical, and genomic approaches to answer questions about the uptake of DNA from bacteriophage, transfer of genes...

Earthquake Simulations

linked profile(s): KimOlsen
submitted by: apryl

Kim Bak Olsen, Associate Professor Department of Geological Sciences at San Diego State University, California discusses earthquake simulations and implication this could have for structure building. Originally posted by SDSC on SDSC's CI Channel at: www.cichannel.org