Sediment color variation in laminated Holocene sediments of ODP Site 178-1098

Continuous sediment color records with a resolution of one measurement per millimeter were generated for Site 1098 (Palmer Deep, Antarctic Peninsula) from digital images of the core surfaces to test if the laminated intervals at this site will allow for analysis of high-frequency climate variability in the Circum-Antarctic. Long-term variation in color values correlates with gamma-ray attenuation bulk density. Darker colors are found in laminated intervals with lower bulk density, high biogenic silica, and high total organic carbon content. Darker color values result from the addition of dark laminae to background sediments that show little variation in color. The thicknesses of dark and light laminae were measured in the top 25 meters composite depth to determine the temporal resolution of the laminae. The alternation between dark, biogenic-rich laminae and background sediment essentially represents an annual cycle, but the sediment is not consistently varved. The modal thickness of light laminae is close to the long-term average annual accumulation rate, and results indicate that approximately half of the dark/light couplets in distinctly laminated intervals represent a single year. Missing biogenic laminae are interpreted to represent reduced primary productivity during cold years with delayed breakup of the sea-ice cover.

(Table 8.2, Page 178) Annotated record of the detailed examination of Mn deposits from submarine photographs acquired by the R/V Vityaz in the Pacific Ocean

Prof. H. H. W. Menard has brought together nearly all that was known of the Pacific geology in the early 1960s. His book contains a particular chapter on manganese nodules giving a stimulating review of the features and processes known to govern their distribution and chemical composition.

Micropaleontology and stable isotope record of ODP Hole 178-1098C

Detailed study of four Holocene sediment intervals from Ocean Drilling Program Site 1098 (Palmer Deep, Antarctic Peninsula) reveals that in situ dissolution of calcareous foraminifers in the core repository has significantly altered and in some cases eliminated calcareous foraminifers. Despite dissolution, the foraminifer and supporting diatom data show that the most open-ocean and reduced sea-ice conditions occurred in the early Holocene. The influence of Circumpolar Deep Water was greatest during the early Holocene but continued to be important throughout the Holocene. An increase in sea-ice proximal diatoms at 3500 cal. BP documents an expansion in the amount of persistent sea ice. The inferred increase in sea ice corresponds with an overall increase in magnetic susceptibility values. Benthic foraminifers are present in all samples from the Palmer Deep, including the middle Holocene pervasively laminated sediments with low magnetic susceptibility values. The consistent presence of mobile epifaunal benthic foraminifers in the laminated sediments demonstrates that the laminations do not represent anoxic conditions. The uniform composition of the agglutinated foraminifer fauna throughout the late Holocene suggests that the Palmer Deep did not experience bottom-water-mass changes associated with the alternating deposition of bioturbated or laminated sediments.

Reisen in mehrere russische Gouvernements in den Jahren 178*, 1801, 1807 und 1815.

Microform master no.: *ZZ-4549.

Direct support and general support maintenance manual (including repair parts and special tools list) for pump, fuel, metering and distributing, assembly 2910-178-1185, 2910-759-5410, 2910-908-6320, 2910-968-6317, and 2910-116-8241.

"June 1984."

Direct support and general support maintenance repair parts and special tools lists (including depot maintenance repair parts and special tools lists) : truck, lift, fork, gasoline, pneumatic tired wheels, 15,000 lb capacity, 210 in. lift height, Army model MHE-178, NSN 3930-00-897-4632, Hyster model H150C, Army model MHE 178A, NSN 3930-01-054-3894 ...

Includes index.

Organizational maintenance repair parts and special tools lists : truck, lift, fork, gasoline, pneumatic tired wheels, 15,000 lb capacity, 210 in lift height, Army model MHE-178, NSN 3930-00-897-4632, Hyster model H150C, Army model MHE 178A, NSN 3930-01-054-3894, Hyster model H150C, Army model MHE 178B, NSN 3930-01-054-3895, Hyster model H150C, Army model MHE 178C ...

Includes index.

Field and depot maintenance manual : truck, lift, fork, gasoline, pneumatic-tired wheels, 15,000-pound capacity, (Hyster model H150C, Army model MHE 178), federal stock number 3930-897-4632.

Includes index.

Organizational maintenance manual : truck, lift, fork, gasoline, pneumatic-tired wheels, 15,000-pound capacity (Hyster model H150C, Army model MHE-178), federal stock number 3930-897-4632.

"December 1962."