Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,914,096,202 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

piston corer

    0.01 sec.
piston corer [′pis·tən ¦kȯr·ər]
(mechanical engineering)
A steel tube which is driven into the sediment by a free fall and by lead attached to the upper end, and which is capable of recovering undistorted vertical sections of sediment.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
Vanessa Junkins, Lee Yokel, John Kempton, & Doug Haywick, Department of Earth Sciences, University of South Alabama, Mobile Al, 36688 Through the use of shallow piston corers, we have successfully collected 12 sediment cores up to 4 m in length from Weeks Bay, a small estuary located in Baldwin County, Alabama.
When the target is soft sediment that would be considerably altered by the rotation of the drill bit, water pressure is used to drive the hydraulic piston corer developed by DSDP through the bit and into the sediment.
This technique's potential was first demonstrated, during DSDP's Leg 64 in 1970, when the prototype hydraulic piston corer, brought aboard Glomar Challenger halfway through the cruise, performed spectacularly well in recovering laminated sediments in perfect condition at Site 480 in the Gulf of California.
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.