Grain size composition of sediment cores from the Weddell Sea, Antarctica

Sedimentary processes in the southeastern Weddell Sea are influenced by glacial-interglacial ice-shelf dynamics and the cyclonic circulation of the Weddell Gyre, which affects all water masses down to the sea floor. Significantly increased sedimentation rates occur during glacial stages, when ice sheets advance to the shelf edge and trigger gravitational sediment transport to the deep sea. Downslope transport on the Crary Fan and off Dronning Maud and Coats Land is channelized into three huge channel systems, which originate on the eastern-, the central and the western Crary Fan. They gradually turn from a northerly direction eastward until they follow a course parallel to the continental slope. All channels show strongly asymmetric cross sections with well-developed levees on their northwestern sides, forming wedge-shaped sediment bodies. They level off very gently. Levees on the southeastern sides are small, if present at all. This characteristic morphology likely results from the process of combined turbidite-contourite deposition. Strong thermohaline currents of the Weddell Gyre entrain particles from turbidity-current suspensions, which flow down the channels, and carry them westward out of the channel where they settle on a surface gently dipping away from the channel. These sediments are intercalated with overbank deposits of high-energy and high-volume turbidity currents, which preferentially flood the left of the channels (looking downchannel) as a result of Coriolis force. In the distal setting of the easternmost channel-levee complex, where thermohaline currents are directed northeastward as a result of a recirculation of water masses from the Enderby Basin, the setting and the internal structures of a wedge-shaped sediment body indicate a contourite drift rather than a channel levee. Dating of the sediments reveals that the levees in their present form started to develop with a late Miocene cooling event, which caused an expansion of the East Antarctic Ice Sheet and an invigoration of thermohaline current activity.

Verdadero metodo de estudiar para ser util a la Republica y a la Iglesia, proporcionando al estilo y necessidad de Portugal : expuesto en varias cartas /

Mode of access: Internet.

... DNA testing accountability report /

"... in accordance with Public Act 093-0785."

2007 Illinois suicide prevention strategic plan.

In 2007, an alliance was formed between the Illinois Suicide Prevention Strategic Planning Committee and the Illinois Suicide Prevention Coalition, unifying the strengths of the groups to continue to advance the plan. The joint mission of this alliance is "to reduce suicide and its stigma throughout Illinois by collaboratively working with concerned stakeholders from the public and private sectors to increase awareness and education, provide opportunities to develop individual and organizational capacity in addressing suicide prevention, and advocate for access to treatment."

Characterization of urban and rural inhalable particulates /

Project no. 10.093.

Evaluation of fe oxide-coated granular activated carbon for removal and recovery of Cu(II) and Cr(VI) from aqueous solution /

"April 1994."--Cover.

Plan to restructure the state of Illinois service delivery system for older adults /

Such restructuring shall encompass the provision of housing, health, financial and supportive older adult services. It is envisioned that this restructuring will promote the development, availability, and accessibility of a comprehensive, affordable, and sustainable service delivery system that places a high priority on home-based and community-based services. Such restructuring will encompass all aspects of the delivery system regardless of the setting in which the service is provided." (PA 093-1081 Section 5).

Report of the Autism Task Force : findings and recommendations /

"In accordance with PA 093-0773."

Operator's manual : welding theory and application.

"October 1976."

1987 census of construction industries.

"CC87-I-11."

Field and depot maintenance manual : truck, lift, fork, gasoline, solid rubber tired wheels, 2,000 lbs capacity, Army model MHE-182, Allis-Chalmers model FT20-24PS-100, FSN 3930-958-3682, Allis-Chalmers model FT20-24PS-127, FSN 3930-958-3683.

Includes index.

Direct support and general support maintenance manual : crane, wheel mounted, 5 ton capacity at 10-foot radius, 3/8 cu yd; 1 engine, diesel driven, 4 x 4 (Hanson Machinery model H446), FSN 3810-948-0407.

Includes index.

Operator and organizational maintenance manual : crusher, jaw, diesel engine driven, semitrailer mounted, 35 ton per hour capacity (Iowa Manufacturing Company model 2A-2A), FSN 3820-851-6728, component of crushing and screening plant, diesel engine driven, FSN 3820-878-4285.

"September 1970."

Fire fighting-ship : Bureau of Ships manual, chap. 93.

"This manual supersedes Bureau of Ships fire fighting manual (Rev. 1944)."

Physical oceanography during POLARSTERN cruise ARK-XVIII/1a

In spite of the lack of bottom reaching convection in the Greenland Sea since the 1980s, convection continues to ventilate the Greenland Gyre down to intermediate depth. The variability of this ventilation activity is determined here annually for eight winters according to a multiple criteria catalogue, applied to annual summer conductivity-temperature-depth transects along 75°N. The comparison of the ventilation depths with the meteorological forcing, the ice cover, and the stratification of the water column shows the decisive influence of the hydrographic structure in the upper and intermediate layers. Ice, on the other hand, is not necessary for convection to occur. Ice formation does not even lead to particularly deep convection. A stability maximum, which currently dominates the vertical structure of the water column at medium depth, limits the ventilation depths effectively.