A 40-Million-Year Lake Record of Early Mesozoic Orbital Climatic Forcing

  title={A 40-Million-Year Lake Record of Early Mesozoic Orbital Climatic Forcing},
  author={Paul E. Olsen},
  pages={842 - 848}
  • P. Olsen
  • Published 14 November 1986
  • Environmental Science, Geology, Geography
  • Science
Sediments of the early Mesozoic Newark Supergroup of eastern North America consist largely of sedimentary cycles produced by the rise and fall of very large lakes that responded to periodic climate changes controlled by variations in the earth's orbit. Fourier analysis of long sections of the Late Triassic Lockatong and Passaic formations of the Newark Basin show periods in thickness of 5.9, 10.5, 25.2, 32.0, and 96.0 meters corresponding to periodicities in time of roughly 25,000, 44,000, 100… 
The Devonian lacustrine sediments of Orkney, Scotland; implications for climate cyclicity, basin structure and maturation history
  • T. Astin
  • Environmental Science, Geology
    Journal of the Geological Society
  • 1990
The Orcadian Basin of northern Scotland (largely of Middle Devonian age) is a major lacustrine rift basin, with the widely correlateable, Achanarras/Sandwick lake bed extending for at least 800 km
Milankovitch cyclicity recorded from Devonian non-marine sediments
  • S. Kelly
  • Geography, Environmental Science
  • 1992
Hydrographically closed basins are sensitive to environmental change at all scales, the influence of climate being particularly strong. Some Devonian basins contain non-marine successions which
Freshwater Limestone In An Arid Rift Basin: A Goldilocks Effect
Abstract The Olduvai Basin (3° S), situated just west of the East African Rift System in northern Tanzania, contains a two-million-year record of paleoclimate and paleoenvironmental change, as well
Periodicity determination of lacustrine cycles from the Devonian of Northern Scotland
Synopsis The Middle Old Red Sandstone (mid Devonian) of the Orcadian Basin in northern Scotland is composed predominantly of cyclic lacustrine deposits. The cyclicity recorded reflects regular
Time-Series Analysis and Cyclostratigraphy: Environmental cycles recorded stratigraphically
Introduction There are a varietyof environmental processes that have been used to explain regular cycles encountered in stratigraphic records (in the broad sense from growth bands in living organisms
10 k.y. depositional cyclicity in the early Eocene: Stratigraphic and 40Ar/39Ar evidence from the lacustrine Green River Formation
Ar/ 39 Ar dating of sanidine from two interbedded tuffs reveals that the maximum average duration of depositional cycles in the Wilkins Peak Member, Green River For- mation, was ;10 k.y., marking the


A review of Mesozoic climates
  • A. Hallam
  • Geography, Environmental Science
    Journal of the Geological Society
  • 1985
There is overwhelming evidence, based on the distribution of distinctive sediments and fossils and oxygen isotope data, that the climate of the Mesozoic world was appreciably more equable than that
Variations in the Earth's Orbit: Pacemaker of the Ice Ages
It is concluded that changes in the earth's orbital geometry are the fundamental cause of the succession of Quaternary ice ages and a model of future climate based on the observed orbital-climate relationships, but ignoring anthropogenic effects, predicts that the long-term trend over the next sevem thousand years is toward extensive Northern Hemisphere glaciation.
Early Jurassic sedimentation of a rift-valley lake: Culpeper basin, northern Virginia
  • T. Hentz
  • Environmental Science, Geology
  • 1985
Gray, calcareous, lacustrine strata of Early Jurassic age crop out adjacent to the faulted western margin of the Culpeper basin, a Mesozoic graben dominated by fluviogenic red beds. Sedimentological,
Support for the astronomical theory of climatic change
  • A. Berger
  • Environmental Science, Physics
  • 1977
AMONG recent papers supporting the astronomical theory of climatic change1–5, the work of Hays et al.5 is of particular importance in providing detailed quasi-periods from deep-sea cores. I wish to
The Decade of North American Geology 1983 Geologic Time Scale
Preparation of the 27 synthesis volumes of The Geology of North America for the Decade of North American Geology (DNAG) is now in progress. In order to encourage uniformity among DNAG authors in the
Chemical composition and stratigraphic correlation of Mesozoic basalt units of the Newark Basin, New Jersey, and the Hartford Basin, Connecticut: Summary
New major– and trace– element analyses of the Messozoic basalts of the Hartford Basin of Connecticut (the Talcott, Holyoke, and Hampden Basalts) indicate that the basalts are chemically very similar
A radiometric time scale of the Triassic
  • J. Webb
  • Geography, Environmental Science
  • 1981
Abstract A review of the large number of stratigraphically controlled isotopic age determinations relevant to the Triassic shows that the ages of the Triassic‐Jurassic and Permian‐Triassic boundaries