The extent of hyperthermophilic microbial diversity associated with siliceous sinter (geyserite) was characterized in seven near-boiling silica-depositing springs throughout Yellowstone National Park using environmental PCR amplification of small-subunit rRNA genes (SSU rDNA), large-subunit rDNA, and the internal transcribed spacer (ITS). We found that Thermocrinis ruber, a member of the order ...

The dominant structural feature of Jordan is the north-south trending Dead Sea Rift. It is an active part of the African-Syrian Rift, which extends for about 6000 km, from east Africa through the Red Sea, Wadi Araba, Dead Sea, Jordan Valley to south Turkey. The groundwater aquifers of Jordan are divided into three main complexes: A deep sandstone aquifer complex, an Upper Cretaceous aquifer com...

Several lines of evidence suggest that simple subduction with one downgoing and one overriding plate is an insufficient model of the Cascadia Subduction Zone. Instead, the subduction zone and arc are segmented, exhibiting variations in multiple characteristics along strike. One line of evidence comes from the analysis of seismicity. The subduction zone is atypical everywhere in that the Wadati-...

Springs on the eastern and western shores of Lake Natron Basin (LNB), located within branch East Africa Rift System (EARS) in Northern Tanzania had a discharge temperature that ranged between 34.0 °C 51.2 °C, while pH varied from 8.0 to 10.7. The electrical conductivity (EC) 5,007 µS/cm 49,200 µS/cm. Cold waters 31.9 32.5 8.3, EC 1,401 3,806 stable isotope composition -2.4 ‰ -5.3 for δ18O, -15....

mahallat hot springs located in the northeast of mahallat, in central iran. there are 6 main hot springs namely shafa, abejoush, donbeh, soleimanie, hakim and soda. in this research, geology, physico-chemical characteristics and petrography of basement rocks of these hot springs have been investigated. the results show that hot springs have an average temperature of 45°c and acidic to neutral p...

Temporal variation in geochemistry can cause changes in microbial community structure and diversity. Here we studied temporal changes of microbial communities in Tengchong hot springs of Yunnan Province, China in response to geochemical variations by using microbial and geochemical data collected in January, June and August of 2011. Greater temporal variations were observed in individual taxa t...

Many thermophiles catalyse free energy-yielding redox reactions involving nitrogenous compounds; however, little is known about these processes in natural thermal environments. Rates of ammonia oxidation, denitrification and dissimilatory nitrate reduction to ammonium (DNRA) were measured in source water and sediments of two ≈ 80°C springs in the US Great Basin. Ammonia oxidation and denitrific...

TEMPERATURE PRODUCTS: ANALYZING DIFFERENCE BETWEEN SATELLITE AND IN SITU MEASUREMENTS Yunyue Yu*, Ming Chen, Dan Tarpley, Jeffrey Privette Center for Satellite Applications and Research, NOAA/NESDIS, 5200 Auth Rd., Camp Springs, MD, USA 20746-4304 I. M. Systems Group, Inc., Camp Springs, MD, USA 20746 Short & Associates, Camp Springs, MD, USA 20746 National Climate Data Center, NOAA/NESDIS, Ash...

S. Kondragunta, NOAA/NESDIS Center for Satellite Applications and Research, Camp Springs, MD 20746 [email protected] X. Zhang, ERT Inc., NOAA/NESDIS Center for Satellite Applications and Research, Camp Springs, MD 20746 C. Schmidt, Co-Operative Institute for Meteorological Satellite Studies, University of Wisconsin, Madison, WI R. B. Pierce, NOAA/NESDIS Center for Satellite Applicatio...