(Table 1) Average aluminium accumulation rate at 40 DSDP Sites for the time interval 0-10 Ma and relative rates for other time intervals


A six-fold increase in the rate of accumulation of Al in north and central Atlantic and Pacific Ocean sediments indicates vastly increased denudation of the continents during the past 15 Ma. The increase is more apparent in hemipelagic than pelagic sites, demonstrating widely distributed local controls. Similarities in the rate of increase in the Atlantic and Pacific show that tectonic elevation is not responsible for the difference in sedimentation rate. Also, similarities in the difference at sites of low and high latitude suggest that glaciation is not the most significant source. A lack of correspondence between sedimentation rates and Vail's sea-level curve similarly rule out that effect. The conclusion drawn here is that worldwide climatic deterioration during the late Tertiary is the explanation for the striking increase in detrital sedimentation in the World ocean.

The ratios are ones of average aluminium accumulation rates in the time intervals to the average rate for the time interval 0-10 Ma.

DOI https://doi.org/10.1594/PANGAEA.711716
Related Identifier https://doi.org/10.1130/0091-7613(1982)10<451:WCDACD>2.0.CO
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.711716
Creator Donnelly, Thomas W
Publisher PANGAEA
Publication Year 1982
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 303 data points
Discipline Earth System Research
Spatial Coverage (-161.206W, -56.557S, 176.901E, 67.785N); Caribbean Sea/BASIN; Caribbean Sea/RIDGE; North Pacific/PLAIN; North Pacific/RIDGE; Gulf of Mexico/SCARP; North Atlantic/CONT RISE; North Atlantic/BASIN; North Atlantic/PLAIN; North Atlantic/SEAMOUNT; North Pacific/SLOPE; North Pacific/GUYOT; South Pacific/Tasman Sea/BASIN; South Pacific/Coral Sea/BASIN; Indian Ocean//BASIN; Indian Ocean//RIDGE; Indian Ocean//FAN; Indian Ocean/Gulf of Aden/BASIN; Indian Ocean//FRACTURE ZONE; Antarctic Ocean/RIDGE; Antarctic Ocean/BASIN; South Pacific/PLATEAU; North Pacific/Philippine Sea/CONT RISE; North Pacific/Philippine Sea/RIDGE; North Pacific/Philippine Sea/BASIN; North Pacific/CONT RISE; South Pacific/BASIN; North Atlantic/Norwegian Sea/PLATEAU; North Atlantic/Norwegian Sea; South Atlantic/RIDGE
Temporal Coverage Begin 1969-03-08T00:00:00Z
Temporal Coverage End 1975-07-05T00:00:00Z