References in periodicals archive ?
New measurements of Mars' magnetic field suggest that plate tectonics reigned supreme on the Red Planet--for at least the first half billion years or so of its 4.5-billion-year existence.
Cheney, E.S., 1996, Sequence stratigraphy and plate tectonic significance of the Transvaal succession of Southern Africa and its equivalent in Western Australia: Precambrian Research, v.
We would say that plate tectonics continues to work, but you just don't see it," says Willett.
Most science teachers quickly cover convection as the mechanism driving plate tectonics and focus on teaching the structure of the Earth, the evidence for plate movement, descriptions of the types of boundaries, and the earthquakes, tsunamis and volcanoes associated with them.
Here we perform an analysis of bathymetric and magnetic data from public sources aimed to identify patterns that allow a better understanding of the origin and evolution of the western segment of JFR (the eastern segment has been characterized in previous works by Von Huene et al., 1997; Yanez et al, 2001, 2002; Kopp et al, 2004), and the possible role of plate tectonic processes as an explanation for the magmatic features along the JFR.
The small minerals' behavior created boundaries defining Earth's first crustal plates and set the stage for plate tectonics, according to a new computer simulation appearing in the April 24 Nature.
The plate tectonic evolution of the North American continent has been reconstructed in considerable detail by Ron Blake, whose series of paleogeographic maps is posted on his website at www.nau.edu.
Ostracodes, which are small (~1 mm), bivalved crustaceans with a nearly 500-million-year fossil record, are one of the most useful fossil groups for use in paleobiogeography, and thus can contribute to understanding ancient plate tectonic configurations.
The second chapter covers the physiographic features of ocean basins and the seafloor, tied to their plate tectonic origins.
Professor Bob Holdsworth, head of Earth sciences at the University of Durham, said: "The location of the earthquake lies along the Apennine backbone of Italy, a region where recently created mountains are now slowly collapsing due to a complex large-scale interaction between plate tectonic forces and gravity.
The Dreki area is part of the Jan Mayen Ridge micro-continent, which was separated from the continental shelf of Greenland and Norway by plate tectonic movements 45-60 million years ago.