Sentence examples for deep sea core from inspiring English sources
However, the most finely resolved evidence for environmental change is not from the fossil and archeological sites themselves, but from deep sea core records that indicate drier and more variable conditions in tropical and subtropical Africa [2] [8].
By correlating palynological data from deep sea cores with archaeological data, it has been proposed that AMH were present in Western Europe and northern Iberia just prior to Heinrich event 4, that conditions during Heinrich event 4 delayed their colonization of southern Iberia, and that subsequent competition with AMH drove Neanderthal extinction after this climatic episode [20].
The dark light alternations in the deep-sea core imply that the bottom water became anoxic periodically (Tada 1994).
The researchers found other hints that the Southern Hemisphere didn't cool by examining a deep-sea core drilled off the coast of New Zealand.
Unit 2 of the deep-sea core, which consists of Pliocene diatomaceous mudstone, can also be identified in the various on-land sections.
A depression of 6 10°C in sea surface temperatures is suggested by deep-sea core analyses, but this seems incompatible with terrestrial evidence.
Figure 3 shows schematically the lithofacies in a deep-sea core obtained during ODP Leg 127 (Tada 1994) and their correlations with typical on-land sections obtained in various districts of Japan.
Unit 1 in the deep-sea core, which is characterized by alternating dark and light layers of hemipelagic mud, tends to correlate with sandy sequences in the on-land sections.
Microcharcoal preserved in deep-sea core MD95-2042 was most likely recruited by the Tagus and the Sado rivers from the fires occurring in their hydrographic basins.
Deep-sea core MD04-2845 (45°20'86N; 5°13'17W, 4175 m water depth) was retrieved 350 km west of Bordeaux from the Gascogne seamount (Figure 1).
Microcharcoal of deep-sea core MD04-2845 was recruited by the rivers draining the close continent: Gironde, Garonne, Dordogne, Loire, Vilaine, Charente and Adour (figure 1).
