Glass Eating Microbes Found

Welcome to the bottom of the deep-sea food chain. The rock bottom, that is. In the current edition of Geochemistry, Geophysics, Geosystems, a team of researchers uncovers and characterizes a process that is commonplace below the ocean bottom. In the upper 300 meters of the earth’s oceanic crust, microbes were found to have literally eaten their way through rock. Traces of this process are preserved in the glassy margins of underwater lava flows (scientists call super-cooled lava spewed by undersea volcanoes “glass,” which is similar to material used to make stone-age axes and knives). Glass samples were recovered by drilling as deep as four miles below sea level. “We’ve documented how extensive these microscopic organisms are eating into volcanic rock, leaving worm-like tracks that look like someone has drilled their way in,” said one of the paper’s co-authors, Hubert Staudigel of Scripps Institution of Oceanography at the University of California, San Diego.

“Our study has confirmed that there’s no place in the oceans that doesn’t have these features.” The process of volcanic rock changing from one state to another has traditionally been seen as a purely chemical-physical process, rather than biological. These rock alterations lead to chemical interactions between the oceanic crust and seawater, influencing important chemical cycles on the earth, including the carbon cycle that is important to the earth’s climate.

Staudigel says the microbes may tunnel their way into rock to derive chemical energy from the glass and to find protection from larger grazing organisms. He calls the glass-eating microbes the rock bottom of the food chain. “We’ve basically determined the depth of the biosphere,” said Staudigel. The study is featured as an “Editor’s Choice” selection in the September 28, 2001 edition of the journal Science. Co-authors include Harald Furnes, Ingunn H. Thorseth, Terje Torsvik, and Ole Tumyr of Bergen University in Norway, and Karlis Muehlenbachs of the University of Alberta in Edmonton.

Comments are closed.

USB TL866II Plus Programmer EPROM EEPROM Flash MiniPro BIOS AVR AL PIC SP MCU picture

USB TL866II Plus Programmer EPROM EEPROM Flash MiniPro BIOS AVR AL PIC SP MCU

$61.00



Aluminum Trim Coil 24

Aluminum Trim Coil 24" x 50' x 0.019" Royal Brown White Flashing New Roll Roof

$63.44



CH341A 24 25 Series EEPROM Flash BIOS USB Programmer Module + SOIC8 Test Clip US picture

CH341A 24 25 Series EEPROM Flash BIOS USB Programmer Module + SOIC8 Test Clip US

$13.76



3

3" x 50' Pella Smart Flash Window & Door Installation Flashing Tape New

$20.75



1/4

1/4" 3/8" 1/2" Quick Tach Attachment Mount Plate Skid Steer

$64.00



Dental Wireless Cordless LED Cure Curing Light Lamp 2000mw 5W Tool Resin Cure picture

Dental Wireless Cordless LED Cure Curing Light Lamp 2000mw 5W Tool Resin Cure

$29.99



10x ATMEL ATTINY85-20PU Tiny85-20PU DIP-8 Chip IC MCU 8Bit 8Kb Flash DIP New picture

10x ATMEL ATTINY85-20PU Tiny85-20PU DIP-8 Chip IC MCU 8Bit 8Kb Flash DIP New

$28.99



32G Voice Activated Mini Spy Digital Sound Audio Recorder Dictaphone MP3 Player picture

32G Voice Activated Mini Spy Digital Sound Audio Recorder Dictaphone MP3 Player

$26.49



Mini Voice Recorder Digital Sound Audio Recorder USB Flash Drive Disk U Disk picture

Mini Voice Recorder Digital Sound Audio Recorder USB Flash Drive Disk U Disk

$14.99



3x Flash Paranormal Equipment Pet Motion Toy Ghost Hunting Light Up Motion Balls picture

3x Flash Paranormal Equipment Pet Motion Toy Ghost Hunting Light Up Motion Balls

$7.82



Powered by WordPress. Designed by WooThemes