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Michael Timofeeff

Michael Timofeeff

Saline Valley brine pool looking east. Saline Valley Brine pool looking west. Biofilm on the southern edge of the saline valley brine pool. Biofilm on the southern edge of the saline valley brine pool. Collecting sunken raft crystals off the muddy bottom of the brine pool. Close up of sunken raft crystals pink with halophilic organisms. Close up of the sunken raft crystals with scale bar (mm/cm). Island formed by rafts of crystals crashing into a high spot in the brine pool and breaking up. 9Saline Valley panorama, left side is facing west and right is east. Sunken raft crystals in a brine bright red with halophilic microorganisms. Look for faint irregular white outlines near wooden piles Sample of the saline valley brines collected in a 60 ml syringe. Walking on the salt crust that forms at the bottom of the brine pool. Tim using a chisel breaking through the top crust of Saline Valley. Digging down to the second layer of salt crust. The top salt crust layer with layers of salt on top and a layer of mud from a previous flooding event. Different cross section of crust illustrating the many colors of microorganisms that live in the salts and on the muds. Digging through the top crust at Saline valley. Top crust ready to be removed from new hole. The temperature probe is approximately 25 cm long. Shovel full of the top crust and the underlying mud. Close up view of top crust with dissolution pipes visiable The underside of a top piece of crust with dissolution pipes visiable. Brine pool during the decline of the halophilic bloom. Changes in water elevation are effected by wind direction and strength. The wind can blow the brine pool onto the surrounding crust and rapidly change the depth of the pool. Chevron crystals growing at the bottom of a shallow pool in Death Valley California. Gypsum (CaSO4) mounds along the eastern edges of Death Valley. CaSO4 rich ground water wicks up and evaporates forming gypsum noduals. Close up of one Gypsum mound/nodual before opening. Close up view of opened gypsum mound/nodual. Note the fine filementous structure of the internal gypsum. Measuring brine salinity with a refractometer. Raft crystal floating on the surface of the brine pool. Surface crust on the margins of the Saline Valley brine pool. Recording field observation.

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Research Associate
PhD (2000) Binghamton University

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Last Updated: 4/10/13