PMID: 9660745Jul 11, 1998Paper

The Quantum Event of Oceanic Crustal Accretion: Impacts of Diking at Mid-Ocean Ridges

Science
J R DelaneyM Summit

Abstract

Seafloor diking-eruptive events represent the irreducible, quantum events of upper oceanic crustal accretion. They record events by which a large portion of the oceanic crust has formed through geological history. Since 1993, the U.S. Navy's real-time Sound Surveillance System has allowed location of ongoing acoustic signatures of dike emplacement and basalt eruptions at ridge crests in the northeast Pacific. These diking-eruptive events trigger a sequence of related, rapidly evolving physical, chemical, and biological processes. Magmatic volatiles released during these events may provide nutrients for communities of subseafloor microorganisms, some of which thrive in high-temperature anaerobic environments. Many of the organisms identified from these systems are Archaea. If microorganisms can thrive in the water-saturated pores and cracks within deep, volcanically active portions of our planet, other hydrothermally active planets may harbor similar life forms.

Citations

Jul 24, 2013·Annual Review of Marine Science·William S D WilcockRobert I Odom
Oct 7, 2006·Extremophiles : Life Under Extreme Conditions·Hosam Easa ElsaiedTakeshi Naganuma
Aug 10, 2005·Marine Biotechnology·Takeshi NaganumaHiroyuki Kimura
Apr 27, 1999·Trends in Biochemical Sciences·P López-Garćia, D Moreira
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Jan 6, 2007·PloS One·Timothy J CroneJeffrey D Parsons
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