The phrase "active margins" is correct and usable in written English.
It is typically used in geological or geographical contexts to describe areas where tectonic plates meet and are associated with significant geological activity, such as earthquakes and volcanic eruptions.
Example: "The Pacific Ring of Fire is known for its active margins, which are responsible for frequent seismic activity."
Alternatives: "dynamic boundaries" or "tectonically active zones".
However, similar examples have also been documented from tectonically active margins, e.g. Magdalena Fan.
The findings are consistent with data from studies on emerged reef terraces on tectonically active margins.
In terms of geologic setting, Permian sediments deposited as thick sedimentary wedges along the tectonically active margins of the major cratons are least understood.
Although the continental slope averages about 4°, it can approach vertical on carbonate margins, on faulted margins, or on leading-edge, tectonically active margins.
In many ways, continental shelves on tectonically active margins at present sea levels approximate lowstands on trailing-edge, or passive, margins.
Marine Geology and Geophysics scientists study some of the most remote and forbidding parts of our planet, from the active margins beneath the oceans to the polar ice sheets.
The given correspondence table represents a standard cross table that enables a sorting of procedure number according to fields and regions, while presenting row and column marginal totals/sums (Active Margin).
Oregon has the steepest local slopes, but surprisingly few large failures for a seismically active margin (especially in the north), implying that slope angle and seismic activity may not be the most important slope stability controls.
The history of South China margin is more complex aided by weakened crust from the active margin period that immediately preceded rifting and opening of the South China Sea.
A quarter of them are also active margin traders, creating a lucrative business for Matsui, which borrows at 0.6% and lends at 2.1%.
The sedimentary architecture of active margin basins, including back-arc basins, is known only from a few end-members that barely illustrate the natural diversity of such basins.
