G eomicrobiology &

G eomicrobiology & E nvironmental M icrobiology S tudies Louisiana State University Department of Geology and Geophysics E235 Howe-Russell Geoscience Complex Louisiana State University Baton Rouge, LA 70803 office: 225-578-2469 fax: 225-578-2302
Cave and Field Work Pictures © AS Engel and other photographers. Please contact if interested in using photographs.
Lower Kane Cave, Wyoming
Looking toward the back of the cave passage, beyond Fissure Spring.	Near Fissure Spring, looking toward back of cave.
Looking toward back of cave, at outflow stream channel from Upper Spring. Stream channel filled with white filamentous microbial mats. We are analyzing sulfur gases here using a gas chromatograph and flux chambers.	Experimentation at Upper Spring orifice pool.
Dr. Libby Stern looking at microbial mats in channel from Upper Spring. Funnel in the middle of the mats, in the middle of the channel is used to collect gases coming from the mats and water at this location. Return to Cave Pictures Index	More experimentation at Upper Spring, looking toward back of cave.
Katrina Mabin (MS Student, UT-Austin) at Upper Spring.	Close-up of microbial mats in Upper Spring orifice pool from the left picture.
Closeup of microbial mats in Lower Spring orifice. Sulfidic water comes out of spring orifice (black sediments at left) and mixes with water from upstream (no dissolved sulfide, orange sediments on right)	Close-up of white mats, gas bubbles, and snails in microbial mats 1 m from Lower Spring orifice.
Closeup of snails, Physa spelunca, at Upper Spring mats.	Flux chamber to measure gases coming from mats.
Setting up different sizes of flux chambers to verify flux rates. Copper tubes were used for the intake gas for scrubbing any H₂S coming into the chambers; all of the outflow tubing going to the GC was Teflon.	The SRI 310 GC setup with laptop in Lower Kane Cave, WY.
Dr. Philip Bennett recording gas measurements at GC.	Closeup of GC setup running in cave.
Walking to cave along railroad tracks.	White and black filaments near Fissure Spring, 2005.
Phil Bennett coming into Lower Kane Cave... it's a little tight!	Jeff getting ready to go into Lower Kane Cave. It's his first trip! 2005
Daniella Mesinger and Natuschka Lee (Technical University of Munich, Germany) sampling microbial mats. 2005	After the fun trip into the cave before the hot walk back to the cars... from left: Annette Engel, Jeff Landrum, Phil Bennett, 2005.
Jeff, Daniella, and Natuschka in passage. 2005	Natuschka, loving the mats, and loving the mats! 2005
Close-up of microbial mats and Physa speluna snail.	Return to Cave Pictures Index MOVIES: Movie1 showing the microbial mats in the cave stream. Requires Media Player; clip is an mpg file and is 1.6 MB (4 sec). There is no sound and the focus is bad in at the beginning.

Please contact Annette Engel for more information regarding the research or photographs. Call (225) 578-2469 or email. Address: Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803. ©AS Engel2007