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Latest Passive margin Stories

2012-01-26 13:39:01

The new issue of LITHOSPHERE is online now. Papers present evidence for the on-going re-shaping of the Rocky-Mountain—Colorado Plateau region by young uplift driven from below (mantle buoyancy), research in the Aegean Sea that documents a newly defined extensional fault system, and study of the hydrologic heterogeneity of faulted and fractured sediment layers with implications for similar rocks to affect the flow of moisture downward toward the spent nuclear fuel geologic repository at...

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2010-11-16 09:44:21

The Earth is constantly manufacturing new crust, spewing molten magma up along undersea ridges at the boundaries of tectonic plates. The process is critical to the planet's metabolism, including the cycle of underwater life and the delicate balance of carbon in the ocean and atmosphere. Now, scientists at the Woods Hole Oceanographic Institution (WHOI) have observed ocean crust forming in an entirely unexpected way"”one that may influence those cycles of life and carbon and, in turn,...

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2008-09-09 14:50:00

Scientists at the University of Liverpool have developed a new exploration method to assist the oil and gas industry in identifying more precisely where the oceans and continents meet. Geophysicists at Liverpool have produced a mathematical technique to process satellite data that can map the thickness of the Earth's crust under the oceans in order to locate where the continents meet oceanic crust. The technique has been used to measure the crustal thickness of areas such as the South...

2008-03-16 03:00:33

By Gvirtzman, Zohar Zilberman, Ezra; Folkman, Yehoshua Abstract: Re-examination of the stratigraphic record in the continental margin of Israel indicates that the Levant passive margin was reactivated in the late Tertiary. Subsidence and, presumably, sedimentation rates increased after prolonged gradual decay; the shelf-slope facies transition zone was revived; faulting and magmatism resumed and the Judea Hills began to rise. Two parallel fault systems with large vertical displacements were...

2005-09-09 18:20:44

PROVIDENCE, R.I. "” The East Pacific Rise, a vast volcanic mountain range submerged in the eastern Pacific Ocean, is one of the fastest seafloor factories on the planet. Here, along a rocky spine that runs about 1,000 miles west of South America, oceanic crust is created from magma bubbling up from deep within Earth's interior. Forces that shape these young oceanic plates have come into clearer focus through research conducted by scientists at the Woods Hole Oceanographic Institution,...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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