Showing papers in "Earth-Science Reviews in 1997"

TL;DR: In this article, the shape of the AMS ellipsoid combines contributions from several different types of AMS components, and the shape changes with the proportions of the different components.

TL;DR: A calcium ATPase-based "trans" mechanism underlies most biological calcification as mentioned in this paper, which produces protons, which plants and photosynthetic symbioses use to assimilate bicarbonate and nutrients.

TL;DR: In this article, a new synthesis of the Black Sea oceanography is presented, primarily based on studies carried out in the southern Black Sea, as well as on some recent work covering the entire basin, obtained in a new era of increasing cooperation between the riparian countries.

TL;DR: In this paper, the authors studied the origin of dolomite on carbonate islands, atolls and oceanic platforms, and provided insights that may not be attainable from the study of more ancient cratonic Dolomites.

TL;DR: In this article, the Bouma Sequence is interpreted as a product of bottom-current re-working and sediment-suspended turbidity currents with fluidal or Newtonian rheology in which sediment is suspended by fluid turbulence.

TL;DR: The most detailed studies of quartzose karst landforms have been in present-day tropical regions, or areas believed to have been tropical in the geologically recent past as mentioned in this paper.

TL;DR: The ice centres of the Permo-Carboniferous and late Ordovician glaciations of Gondwana have been quantitatively estimated as discussed by the authors, and their positions relative to the inferred mean paleomagnetic poles are not significantly different from those of the Quaternary ice centres relative to present-day geographic poles.