scholarly journals Geophysical Characterization of Serpentinite Hosted Hydrogeology at the McLaughlin Natural Reserve, Coast Range Ophiolite

2018 ◽  
Vol 19 (1) ◽  
pp. 114-131 ◽  
Author(s):  
Estefania Ortiz ◽  
Masako Tominaga ◽  
Dawn Cardace ◽  
Matthew O. Schrenk ◽  
Tori M. Hoehler ◽  
...  
Keyword(s):  
Coast Range ◽  
Natural Reserve ◽  
Coast Range Ophiolite ◽  
Geophysical Characterization

scholarly journals Establishment of the Coast Range ophiolite microbial observatory (CROMO): drilling objectives and preliminary outcomes

2013 ◽  
Vol 16 ◽  
pp. 45-55 ◽  
Author(s):  
D. Cardace ◽  
T. Hoehler ◽  
T. McCollom ◽  
M. Schrenk ◽  
D. Carnevale ◽  
...  
Keyword(s):  
Drilling Fluid ◽  
Coast Range ◽  
Monitoring Wells ◽  
Core Recovery ◽  
Natural Reserve ◽  
Incubation Experiments ◽  
In Situ Incubation ◽  
Coast Range Ophiolite ◽  
Long Term Observation ◽  
Fluid Penetration

Abstract. This project aimed to establish a subsurface microbial observatory in ultramafic rocks, by drilling into an actively serpentinizing peridotite body, characterizing cored rocks, and outfitting the boreholes for a program of long-term observation and experimentation to resolve the serpentinite-hosted subsurface biosphere. We completed drilling in August 2011, drilling two boreholes with core recovery and possibility for down-hole experimentation, and six smaller-diameter monitoring wells arrayed around the two primary holes, in the Coast Range ophiolite (CRO) locality in the UC-Davis McLaughlin Natural Reserve, Lower Lake, CA. Every effort was made during drilling to keep the cores and wells as free of drilling-induced contamination as possible: clean, purified water was used as drilling fluid, fluorescent microbead tracers were suspended in that water for quantification of drilling fluid penetration into the cores, and high resolution next generation sequencing approaches were used to characterize the microbial populations in the drill fluids and core materials. In December 2011, we completed installation of well pumps (slow flow bladder pumps) in the monitoring wells, and have deployed a set of in situ incubation experiments in the two uncased boreholes. Preliminary findings illustrate natural variability in actively serpentinizing strata, and confirm distinct groundwater flow regimes and microbial ecosystems in (a) shallow, surface-impacted soil water horizons and (b) deeper, ultramafic bedrock-sourced formation fluids.

Integrating The Geophysical Characterization Of Seismic Thin Beds With Stochastic Reservoir Modeling: A Case Study From The Kutei Basin (Offshore Kalimantan, Indonesia)

2011 ◽  
Author(s):  
Giorgio Rocco Cavanna ◽  
Ernesto Caselgrandi ◽  
Elisa Corti ◽  
Alessandro Amato del Monte ◽  
Massimo Fervari ◽  
...  
Keyword(s):  
Reservoir Modeling ◽  
Geophysical Characterization

GEOPHYSICAL CHARACTERIZATION OF KARST AQUIFERS USING DYNAMIC RECHARGE EVENTS

2017 ◽  
Author(s):  
Andrew J. Luhmann ◽  
◽  
Susan L. Bilek ◽  
Ronni Grapenthin ◽  
Jonathan B. Martin
Keyword(s):  
Karst Aquifers ◽  
Geophysical Characterization

Geotechnical and Geophysical Characterization of Frozen Granular Material

2013 ◽  
pp. 205-218 ◽  
Author(s):  
Anna Maria Ferrero ◽  
Alberto Godio ◽  
Maria Migliazza ◽  
Luigi Sambuelli ◽  
Andrea Segalini ◽  
...  
Keyword(s):  
Granular Material ◽  
Geophysical Characterization
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