From: eburke@phakt.usc.edu (McCaffrey's "Lackey")
Newsgroups: sci.geo.geology
Subject: Summary:  Mid-Oceanic Ridge Metamorphism. (LONG)
Date: 13 Apr 1992 22:42:28 -0700
Organization: University of Southern California, Los Angeles, CA
Distribution: world
NNTP-Posting-Host: phakt.usc.edu

OK here is the promised summary, many thanks to all those who responded.
All letters and articles have been cut down a bit to reduce bandwidth.
Warning:  This is a long one, so beware. 
______________________________________

From denis@quartz.tucson.az.us Mon Apr 13 08:01:59 1992
  Yes SCI started in 1960s. Browse thru some. Start with old ones - less paper
  to cope with. If USC has the 5-yr cumulative indexes so much the better.

From lhdsy1!.chevron.com!hwcco@uunet.UU.NET Mon Apr 13 14:48:24 1992
  Your Geology Library should have a set of the "Bibliography and Index of 
  Geology". A four-volume set is issued every year. You should be able to find 
  references to Mid-Ocean-Ridge Metamorphism.  Failing that, check with your 
  librarian. The library should have a subscription to GeoRef, the online 
  bibliographic search service. The librarian should be able to search the 
  database with keywords like "Midocean Ridge" and "Metamorphism" and get you a 
  list of articles.
  If memory serves me, MOR's are strange environments with high temps and low 
  pressures.
 

From harper@kauri.vuw.ac.nz Mon Apr 13 14:11:21 1992
  (1)Find out from whoever set you this project some 5-10 year old important
  papers on this subject and ask if what I'm recommending below seems sensible.

  (2)Go to work with Science Citation Index to find who used those papers.
  University libraries all over the world seem user-unfriendly the first 100
  times you look for something. (Yours can't be as bad as Oxford! But a lot
  of useful work has been done even there!)

  (3)Some journals have a subject index each year (e.g. JGR) or cumulative
  indexes less often (e.g. Tectonophysics).  

  (4)Chemical Abstracts is HUGE but its subject indexes can be helpful.


From DANIEL@LAMONT.LDGO.COLUMBIA.EDU Mon Apr 13 09:48:36 1992
  If you are looking for something a bit biological with regard to MORs, take
  a look at the results from ODP Legs 106 and 109. I was out on Leg 106 and
  remember that we found a new hydrothermal site near the Kane Fracture Zone.
  I think most work has been done by the people at Woods Hole Oceanographic
  Institute (WHOI), but ODP did drill the site, which was a first. I believe
  the community of organisms surrounding these vents is distinct from that 
  found at the East Pacific Rise. You might also check out work by Dr. Susan
  Humphris at WHOI. She was out on Leg 106 and has been involved with some
  dives using ALVIN. I don't think she's a biologist, but she may deal with
  the life at the vents in a passing way. Worth a look. Good luck.

From chidsey@BRL.MIL Mon Apr 13 07:56:22 1992
  	The library should subscribe to Current Contents and to Abstracts
  Journals.  Ask your professor, and/or the librarian which ones to look in.
  Current Contents is a collection of tables of contents, and comes out a few
  months after the juornals are published.  Abstracts Journals come out later,
  but give abstracts of significant material in the articles of technical 
  journals.  You might also enquire as to which journals are significant,
  and just plow thru a decade or two of contents tables for each.

From daniel@lamont.ldgo.columbia.edu Mon Apr 13 07:17:59 1992
  Here are some places you might begin. Look for a set of the Proceedings of the
  Ocean Drilling Program (ODP) and the Initial Reports of the Deep Sea Drilling
  (DSDP) Project. Since the late 1960's DSDP, and now ODP have been operating
  scientific drilling vessels which have been recovering sediment and rock cores
  from the ocean floor and from around the world. The DSDP reports usually
  consist of a chapter for each drill Site which describes the coring operation
  and the basic characteristics of the core recovered. This will include pictures
  of the cores and detailed descriptions of the cores. Following these will be
  other chapters, which are in essence scientific papers about the results of
  studies done on the recovered material. Under ODP the site reports, core
  descriptions and shipboard scientific results have been removed to a separate
  volume (Initial Reports or Part A) from the published papers (Scientific
  Results or Part B). Many of these volumes will not be of interest to you as the
  cruise was concentrating on biostratigraphy or some such sedimentary question.
  However, you might want to look at the results from cruises that either drilled
  an ocean ridge, or which penetrated deep into volcanic basement. Of particular
  interest to you might be the deepest penetration of oceanic basement, Hole
  504B. This hole has been drilled on several different Legs including 69, 70,
  83, 111, and 137. Legs 34, 49, and 82 drilled on the Mid-Atlantic Ridge near
  the FAMOUS region. Leg 49 also drilled farther up the ridge, near iceland. Legs
  106 and 109 drilled very fresh basalts and serpentinized peridotites near 24
  deg North, around the Kane Fracture Zone. Leg 118 recovered a large amount of
  gabbro from the SW Indian Ridge. Legs 51, 52, and 53 drilled deep holes in old
  crust of the Western North Atlantic. Many other Legs also recovered basement,
  but they may not have treated it in detail, as that was not the focus of the
  cruise. But those Legs should give you a start on the DSDP/ODP material.

  For a good general discussion of alteration you might begin with:

  Cann, J.R., 1979. Metamorphism in the ocean crust, in, Deep Drilling Results in
  the Atlantic Ocean: Ocean Crust, Maurice Ewing Series 2 [Geodynamics Project:
  Scientific Report, no. 48], Washington, D.C., American Geophysical Union, p.
  230-238

  Others may respond with more recent general treatments, but you could probably
  also mine the bibliographies of the more recent ODP volumes for references.
  Good luck, let me know if you have any other questions.

From denis@quartz.tucson.az.us Mon Apr 13 14:17:32 1992
  a few to get you started   \jgr = Journal of Greophysical Research
  note also that the ridge hot springs are likely to be the
  origin of life,  cf John Burras circa JGR fall meeting abstracts 1989,
  should be under same call number.
  enjoy 

  Alt, J.C., Honnorez, J., Laverne, C., and Emmermann, R., 1986,
  Hydrothermal alteration of a 1 km section through the upper oceanic crust, 
  deep sea drilling profect hole 504B:  mineralogy, chemistry, and evolution
  of seawater-basalt interactions, {\jgr}, v. 91, p. 10,309-10,335.

  Bird, D.K., Manning, C.E. and Rose, N.M.,  1988, Hydrothermal alteration
  of tertiary layered gabbros, east Greenland, {\ajs}, v. 288, p. 405-457.

   Bowers, T.S. and Taylor, H.P.  1985,  An integrated chemical and
  isotopic model of the origin of mid-ocean ridge hot springs
  systems, {\jgr}, v. 90, p. 12583-12606.

  Delaney, J.R., Mogk, D.W. and Mottl, M.J., 1987, Quartz-cemented
  breccias from the Mid-Atlantic ridge: samples of a high-salinity
  hydrothermal upflow zone, {\jgr}, v. 92, p. 9175-9192.

    Gregory, R.T. and Taylor, H.P., 1981, An oxygen isotope profile in
  a section of Cretaceous oceanic crust, Samail Ophiolite, Oman:
  Evidence for $\delta O^{18}$ buffering of the oceans by deep ($  $
  5 km) seawater-hydrothermal circulation at mid-ocean ridges, {\jgr},
  v. 86, p. 2737-2755.
 
These were the posted responses in case anyone missed them.

Article 1852 of sci.geo.geology:

  Rather than the card catalog, try the Bibliography and Index of Geology (BIG).
  Things can be found there in one of 2 major sections: title/author, and by
  subject.  The same paper is mormally found under several different subjects:
  eg, under the location and under the topic, and also under subtopics. The BIG
  should be in your library. Also, if you have some cash available, try the
  Georef system on Dialog. You will qualify for a 50% discount as a student at
  USC and your library should be able to help you get access to it and may have
  someone who is expereienced in using it so as to save you search time while
  learning who to search for things.
  chad
  price@helios.unl.edu

Article 1853 of sci.geo.geology:
From: stgprao@xing.unocal.com (Richard Ottolini)

  It is that time of year again, term paper by usenet :-)

  (1) Ask you professor or grad student TA for the *names* of one or two
  prominent researchers in the topic and look up their publications.
  (2) Look for the first article on a topic, propagate backwards via cited
  references and forwards via the Science Citation index.

  The geosciences are mostly driven by journal publications.  Material doesn't get
  distilled into monographs or textbooks that often.
  The market for geoscience publications is small, so there isn't a financial
  incentive to write upper level textbooks.

Wow, if you've made it down to here you've got patience! :-) :-)
Thank you again for all of your help.  BTW, I didn't do the actual
formatting and my friend said to blame it on him if it's wrong, so 
if it's wrong, it was Avenging Angel's fault (seip@phakt.usc.edu).

<Avenging Angel>  Sorry a few letters and articles got a bit shredded.
	The news-new didn't like how I was marking the inserted text, so 
	I had to replace  ">" with "  "   As a result, several words got 
	scrolled partially to the next line.  This should still be readable
	though.  :-)
						seip@phakt.usc.edu




Newsgroups: sci.geo.geology