Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Föllmi, Karl B; Cramp, Adrian; Föllmi, Karl E; Alexandrovich, Joanne M; Brunner, Charlotte A; Burckle, Lloyd H; Casey, Martin; deMenocal, Peter B; Dunbar, Robert B; Grimm, Kurt A; Holler, Peter R; Ingle, James C; Kheradyar, Tara; McEvoy, James; Nobes, David C; Stein, Ruediger; Tada, Ryuji; von Breymann, Marta T; White, Lisa D (1992): Geochemistry of dark-light rhythm sediments of the Japan Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.776579, Supplement to: Föllmi, KB et al. (1992): Dark-light rhythms in the sediments of the Japan Sea: preliminary results from Site 798, with some additional results from Sites 797 and 799. In: Pisciotto, KA; Ingle, JCJr.; von Breymann, MT; Barron, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 127/128(1), 559-576, https://doi.org/10.2973/odp.proc.sr.127128-1.159.1992

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Ocean Drilling Program Legs 127 and 128 in the Japan Sea have revealed the existence of numerous dark-light rhythms of remarkable consistency in sediments of late Miocene, latest Pliocene, and especially Pleistocene age. Light-colored units within these rhythms are massive or bioturbated, consist of diatomaceous clays, silty clays, or nannofossil-rich clays, and are generally poor in organic matter. Dark-colored units are homogeneous, laminated, or thinly bedded and include substantial amounts of biogenic material such as well-preserved diatoms, planktonic foraminifers, calcareous nannofossils, and organic matter (maximum 7.4 wt%).
The dark-light rhythms show a similar geometrical pattern on three different scales: First-order rhythms consist of a cluster dominated by dark-colored units followed by a cluster dominated by light-colored units (3-5 m). Spectral analysis of a gray-value time series suggests that the frequencies of the first-order rhythms in sediments of latest Pliocene and Pleistocene age correlate to the obliquity and the eccentricity cycles. The second-order dark-light rhythms include a light and a dark-colored unit (10-160 cm). They were formed in time spans of several hundred to several ten thousand years, with variance centering around 10,500 yr. This frequency may correspond to half the precessional cycle. Third-order rhythms appear as laminated or thinly bedded dark-light couplets (2-15 mm) within the dark-colored units of the second-order rhythms and may represent annual frequencies.
In interpreting the rhythms, we have to take into account that (1) the occurrence of the first- and second-order rhythms is not necessarily restricted to glacial or interglacial periods as is shown by preliminary stable-isotope analysis and comparison with the published d18O record; (2) they appear to be Milankovitch-controlled; and (3) a significant number of the rhythms are sharply bounded. The origin of the dark-light rhythms is probably related to variations in monsoonal activity in the Japan Sea, which show annual frequencies, but also operates in phase with the orbital cycles.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 37.827227 * Median Longitude: 134.667850 * South-bound Latitude: 37.038300 * West-bound Longitude: 134.536000 * North-bound Latitude: 38.616000 * East-bound Longitude: 134.799800
Date/Time Start: 1989-07-31T20:00:00 * Date/Time End: 1989-08-31T23:40:00
Event(s):
127-797B * Latitude: 38.616000 * Longitude: 134.536000 * Date/Time Start: 1989-07-31T20:00:00 * Date/Time End: 1989-08-04T17:00:00 * Elevation: -2874.0 m * Penetration: 495.7 m * Recovery: 370.69 m * Location: Japan Sea * Campaign: Leg127 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 495.7 m cored; 0 m drilled; 74.8 % recovery
128-798A * Latitude: 37.038300 * Longitude: 134.799800 * Date/Time Start: 1989-08-27T07:15:00 * Date/Time End: 1989-08-28T10:24:00 * Elevation: -914.0 m * Penetration: 143.3 m * Recovery: 148.27 m * Location: Japan Sea * Campaign: Leg128 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 17 cores; 143.3 m cored; 0 m drilled; 103.5 % recovery
128-798B * Latitude: 37.038500 * Longitude: 134.799600 * Date/Time Start: 1989-08-28T10:24:00 * Date/Time End: 1989-08-31T08:00:00 * Elevation: -911.0 m * Penetration: 517.9 m * Recovery: 514.42 m * Location: Japan Sea * Campaign: Leg128 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 54 cores; 517.9 m cored; 0 m drilled; 99.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

  1. Föllmi, KB; Cramp, A; Föllmi, KE et al. (1992): (Table 2) Major element content in ODP Hole 127-797B. https://doi.org/10.1594/PANGAEA.776574
  2. Föllmi, KB; Cramp, A; Föllmi, KE et al. (1992): (Table 3) Minor element content in ODP Hole 127-797B. https://doi.org/10.1594/PANGAEA.776576
  3. Föllmi, KB; Cramp, A; Föllmi, KE et al. (1992): (Table 1) Estimates of missing sediment between each Core of ODP Site 128-798. https://doi.org/10.1594/PANGAEA.776573
  4. Föllmi, KB; Cramp, A; Föllmi, KE et al. (1992): (Table 4) Major and trace elements, TOC and stable carbon and oxygen isotope ratios of ODP Hole 128-798C. https://doi.org/10.1594/PANGAEA.776578