Prueher, Libby M; Rea, David K (2001): Accumulation rates of volcanic glass and ice-rafted debris in sediments of the North Pacific Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.706310, Supplement to: Prueher, LM; Rea, DK (2001): Volcanic triggering of late Pliocene glaciation: evidence from the flux of volcanic glass and ice-rafted debris to the North Pacific Ocean. Palaeogeography, Palaeoclimatology, Palaeoecology, 173(3-4), 215-230, https://doi.org/10.1016/S0031-0182(01)00323-6
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Abstract:
Mass accumulation rates (MAR) of different components of North Pacific deep-sea sediment provide detailed information about the timing of the onset of major Northern Hemisphere glaciation that occurred at 2.65 Ma. An increase in explosive volcanism in the Kamchatka-Kurile and Aleutian arcs occured at this same time, suggesting a link between volcanism and glaciation. Sediments recovered by piston-coring techniques during ODP Leg 145 provide a unique opportunity to undertake a detailed test of this possibility. Here we use volcanic glass as a proxy for explosive volcanism and ice-rafted debris (IRD) as a proxy for glaciation. The MAR of both glass and IRD increase markedly at 2.65 Ma. Further, the flux of the volcanic glass increased just prior the flix of ice-radted material, suggesting that the cooling resulting from explosive volcanic eruptions may have been the ultimate trigger for the mid-Pliocene glacial intensification.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 51.975767 * Median Longitude: -177.692544 * South-bound Latitude: 50.363300 * West-bound Longitude: 167.599800 * North-bound Latitude: 54.365500 * East-bound Longitude: -148.446000
Date/Time Start: 1992-08-05T00:00:00 * Date/Time End: 1992-09-16T00:00:00
Event(s):
145-882 * Latitude: 50.363300 * Longitude: 167.599800 * Date/Time Start: 1992-08-05T00:00:00 * Date/Time End: 1992-08-08T00:00:00 * Elevation: -3255.0 m * Penetration: 668.7 m * Recovery: 692.1 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 71 cores; 668.7 m cored; 0 m drilled; 103.5% recovery
145-883 * Latitude: 51.198500 * Longitude: 167.768567 * Date/Time Start: 1992-08-09T00:00:00 * Date/Time End: 1992-08-20T00:00:00 * Elevation: -2398.3 m * Penetration: 2956.6 m * Recovery: 1225.7 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 158 cores; 1506.1 m cored; 0 m drilled; 81.4% recovery
145-887 * Latitude: 54.365500 * Longitude: -148.446000 * Date/Time Start: 1992-09-09T00:00:00 * Date/Time End: 1992-09-16T00:00:00 * Elevation: -3645.2 m * Penetration: 972.9 m * Recovery: 570.6 m * Location: North Pacific Ocean * Campaign: Leg145 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 79 cores; 715.5 m cored; 0 m drilled; 79.7% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Prueher, LM; Rea, DK (2001): (Table 1) Age, magnetic susceptibility, and mass accumulation rate of volcanic glass and IRD from ODP Site 145-882. https://doi.org/10.1594/PANGAEA.706307
- Prueher, LM; Rea, DK (2001): (Table 1) Age, magnetic susceptibility, and mass accumulation rate of volcanic glass and IRD from ODP Site 145-883. https://doi.org/10.1594/PANGAEA.706308
- Prueher, LM; Rea, DK (2001): (Table 1) Age, magnetic susceptibility, and mass accumulation rate of volcanic glass and IRD from ODP Site 145-887. https://doi.org/10.1594/PANGAEA.706309