GEOL 206 Geologic Excursions had a great time in the eastern San Gabriel Mountains last weekend (from Wrightwood to Punchbowl County Park) - here is the group on the Punchbowl Formation just before leaving for home.

GEOL 206 Geologic Excursions had a great time in the eastern San Gabriel Mountains last weekend (from Wrightwood to Punchbowl County Park). Found a lot of actinolite in a landslide wash area that was sourced in the Pelona Schist.

GEOL 420 Appl Geophys collected ERT data at Bartleson Ranch (450+ acre avocado/lemon orchard donated to Cal Poly) over *possible* fault. Hoping to ID new groundwater/well resources over time. We used our mighty SuperStingR8 👍 Advanced Geosciences Inc Cal Poly Bailey College of Science and Mathematics Cal Poly @CPCorporation

#FreeMapMonday

GEOL 420 Appl Geophys started the seismic refraction part of the course - by collecting a data set right away! A perfect fall day for some hammer swings.

GEOL 420 Applied Geophysics spent the weekend along the Rinconada Fault collect 2D and 3D resistivity data. We are studying the nature of the highly sheared Salinian Block granite as a potential aquifer. Beautiful field site.

Walked into the main geology classroom where the students hang out early this morning, in the middle of finals week, to find this on the board. A sense of humor AND accountability. It was a great way to start the day.

A beautiful day a Cal Poly's Bartleson Ranch. Using electrical resistivity surveys to help locate potential groundwater well sites. Cal Poly @CPCorporation Cal Poly Bailey College of Science and Mathematics

GEOL 305 at Waterman Hills Detachment Fault (near Barstow, CA) we found the domino style normal faults in the hanging wall Fig. 4B in Glazner et al., 2002 Cenozoic Evolution of the Mojave Block in southern California (GSA Memoir 195, p 19-41). pubs.geoscienceworld.org/gsa/books/book…

Another electrical resistivity line (1,100 meters) at Cal Poly's Bartleson Ranch. Slowly piecing together the hydrogeology ... more to come.

2D Electrical Resistivity survey this morning with GEOL 420 Applied Geophysics class. Trying to figure out structure of a local thin alluvial aquifer, especially the bedrock - the variable outcrops make it ambiguous for now ... beautiful morning in San Luis Obispo 👍😀

GEOL 420 class collecting electrical resistivity (w/SuperStingR8) data over the Rinconada Fault, separating crushed Salinian Block granites from shale and sandstone units in west Paso Robles.

GEOL 420 Field Geophysics class beginning seismic refraction surveying this week. With midterms etc., it's a good time to be swinging a sledgehammer

GEOL 241 (physical geology lab) students in poly canyon determining if they have yet gone enough up section to go from Toro Formation to Rincon Shale. Beautiful day and setting 😃

Collecting reconnaissance seismic refraction tomography data at a hard-rock aquifer study site of weathered granite in the Salinian Block along the Rinconada Fault (Paso Robles, CA area).

It's #FreeMapMonday! Re-tweet and follow us for a chance to win the World Seismicity Map. #USGSStore (U.S. residents only)

GEOL 420 Field Geophysics class performing a seismic refraction survey over an alluvial aquifer (The "Chorro Creek Dog Leg" site near the Cal Poly SLO campus). Going for a critical refraction from bedrock (and anything in between!). Nice looking data (but two funky geophones).