Results 81 to 90 of about 31,106 (253)

Proceedings of the Integrated Ocean Drilling Program 336: Mid-Atlantic Ridge Microbiology

, 2012
<p>Integrated Ocean Drilling Program (IODP) Expedition 336 successfully initiated subseafloor observatory science at a young mid-ocean-ridge flank setting. All of the drilled sites are located in the North Pond region of the Atlantic Ocean.
Lado-Insua, Tania, Harigane, Yumiko, Haddad, Amanda G., Park, Young Soo, Le Campion, Paul, Nakamura, Kentaro, Anderson, Louise, Hulme, Samuel M., Backert, Nicolas, Mills, Heath, Russell, Joseph A., Rennie, Victoria, Hirayama, Hisako, Wang, Fengping, Jørgensen, Steffen Leth, Orcutt, Beth N., Becker, Keir, Edwards, Katrina, Bach, Wolfgang, Wheat, C. Geoffrey, Klaus, Adam, Sakata, Kasumi, Griffin, Dale W., Rouxel, Olivier, Salas, Everett   +24 more
core   +1 more source

Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge [PDF]

, 2012
Little is known about fixed nitrogen (N) transformation and elimination at diffuse hydrothermal vents where anoxic fluids are mixed with oxygenated crustal seawater prior to discharge.
G. Lavik, Lehmann, M. F., Murdock, S.A., A. H. Devol, Devol, A.H., Wenk, C. B., Hallam, S.J., Bourbonnais, A., Kuypers, M. M. M., Hallam, S. J., Chang, B.X., Devol, A. H., S. J. Hallam, M. M. M. Kuypers, Butterfield, D.A., Kuypers, M.M.M., M. F. Lehmann, Juniper, S. Kim, Juniper, S. K., Chang, B. X., Lehmann, M.F., B. X. Chang, Murdock, S. A., D. A. Butterfield, Butterfield, D. A., A. Bourbonnais, Lavik, G., S. K. Juniper, C. B. Wenk, Wenk, C.B., S. A. Murdock   +30 more
core   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

Boreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe, Charles E. Logan, Ross D. Knight, Andre J.‐M. Pugin   +3 more
wiley   +1 more source

Luminescence dating of coastal deposits from the Chanthaburi Plain, Thailand

Boreas, EarlyView.
The ongoing global sea‐level rise urges us to better understand the dynamics of coastal processes for predicting future changes. Sedimentary deposits reflect past coastal environments but require precise chronological data to place evidence into a temporal context.
Margarita Nuss, Sakonvan Chawchai, Savanna Kager, Smith Leknettip, Yunyi Li, Kannika Wangritthikraikul, Frank Preusser   +6 more
wiley   +1 more source

Earthquake Seismicity Reveals the Location and Significance of the Shona Mantle Plume in the South Atlantic Ocean

Geophysical Research Letters
The South Atlantic Ocean hosts several well‐studied volcanic ridges and seamount chains, but the origin of their associated mantle plumes is debated.
Ross Parnell‐Turner
doaj   +1 more source

Chronological, geochemical characteristics and tectonic evolution significance of the Sanyan eclogites in the Jinsha River suture zone, eastern Xizang

Dizhi lixue xuebao
Objective  As a key component of the eastern Tethys tectonic domain, the Jinsha River–Ailao Mountain suture zone is widely recognized as a Paleo-Tethys orogenic belt.
TANG Yuan, LI Yiduo, WANG Dongbing, HAN Mingming, LI Xin, LUO Liang   +5 more
doaj   +1 more source

Changing climates and environments within the complex Middle to Late Pleistocene fill of an overdeepened valley at Niederweningen, Switzerland

Boreas, EarlyView.
Glacially overdeepened valleys in the northern Alpine Foreland preserve Middle to Late Pleistocene sedimentary sequences that may serve as valuable archives for reconstructing past environmental changes in response to shifts in climate. This study presents a multidisciplinary analysis of two sediment cores from the overdeepened Wehntal Valley at ...
Johannes M. Miocic, Nigel Thew, Ruth Drescher‐Schneider, Hans Rudolf Graf, Marlu Kühn, Frank Preusser, Werner H. Schoch, Lucia Wick, Heinz Furrer   +8 more
wiley   +1 more source

RRS James Cook Cruise 44, 25 Mar - 22 Apr 2010, Trinidad to Jamaica. Hydrothermal activity and deep-ocean biology of the Mid-Cayman Rise

, 2012
JC044 was a NERC funded research cruise aboard the UK Research Vessel the RRS James Cook the aim of the cruise was to explore the ultra-slow spreading Mid-Cayman Rise (MCR) in the Caribbean for hydrothermal activity.
Connelly, D.P., et al,
core  

Crustal accretion at the Reykjanes Ridge, 61°–62°N

We report results of a seismic, gravity, and magnetic survey of the Reykjanes Ridge spreading center at 61°–62°N, about 600 km from the center of the Iceland mantle plume.
Smallwood, John R., White, Robert S.
core   +1 more source

Expedition 302 geophysics: integrating past data with new results

, 2006
In preparation for IODP Expedition 302, Arctic Coring Expedition (ACEX), a site survey database comprising geophysical and geological data from the Lomonosov Ridge was compiled.
Kaminski, M., Backman, J., Martinez, N.C., Pälike, H., Smith, D.C., Jakobsson, M., Rio, D., Matthiessen, J., Rea, B., O'Regan, M., Moore, T.C., King, J., Onodera, J., Brinkhuis, H.K., Takahashi, K., Sakamoto, T., Watanabe, M., Koç, N., Rea, B.R., Dickens, G.R., Clemens, S., T. Floden, Stein, R., Brinkhuis, H., M. Jakobsson, Suto, I., Eynaud, F., Gattacceca, J., Flodén, T., Cronin, T., St. John, K.E.K., Moran, K., Moore Jr., T.C., Yamamoto, M., Jordan, R.W., McInroy, D., Suzuki, N.   +36 more
core   +1 more source