Essays on the Study of Pegmatites
Hello PIGs:
My eighth article is posted under the Essays on the Study of Pegmatites heading on PIG. The article is:
Jahns, R.H. and Tuttle, O.F. (1963) Layered pegmatite-aplite intrusives. Mineralogical Society of America Special Paper, 1, 78-92.
The MSA has granted permission to post the article along with the essay. Though not nearly as well known as some of Jahns’ other publications, this one was hugely important for its presentation of what became known as the Jahns-Burnham model for pegmatites and the experimental evidence for it. The only new data in the paper are five analyses of pegmatites, and these are given only in a summary form without explanation of methods or other details. The remainder of the article consists of Jahns’ elucidation of his model. O.F. “Frank” Tuttle was an experimental petrologist; one might expect the article to feature experimental work done by him. The answer is, yes, and no. Read the article, find the short passage that refers to the “model of Jahns and Burnham (1963)”, and the very brief discussion of experimental evidence for it. A colleague who reviewed the essay remarked that “Science articles are not mystery stories with a whodunit revealed at the end.” This article, however, comes as close to a whodunit mystery as any I have ever known in a science publication. In the essay, I have solved the mystery to the best of my knowledge.
David London
Learn about pegmatites and join the Pegmatite Interest Group at
http://www.minsocam.org/msa/Special/Pig/
Thanks Dave,
I did not have this digitally and need to reread.
Richard Bedell
Reno NV
Cell (775) 233-2212
From: MSA-Pegmatite Interest Group msa-pegmatite@minlists.org
Sent: Sunday, August 15, 2021 7:48 AM
To: msa-pegmatite@minlists.org
Subject: [MSA-pegmatite] Essays on the Study of Pegmatites
Hello PIGs:
My eighth article is posted under the Essays on the Study of Pegmatites
heading on PIG. The article is:
Jahns, R.H. and Tuttle, O.F. (1963) Layered pegmatite-aplite intrusives.
Mineralogical Society of America Special Paper, 1, 78-92.
The MSA has granted permission to post the article along with the essay.
Though not nearly as well known as some of Jahns' other publications, this
one was hugely important for its presentation of what became known as the
Jahns-Burnham model for pegmatites and the experimental evidence for it. The
only new data in the paper are five analyses of pegmatites, and these are
given only in a summary form without explanation of methods or other
details. The remainder of the article consists of Jahns' elucidation of his
model. O.F. "Frank" Tuttle was an experimental petrologist; one might expect
the article to feature experimental work done by him. The answer is, yes,
and no. Read the article, find the short passage that refers to the "model
of Jahns and Burnham (1963)", and the very brief discussion of experimental
evidence for it. A colleague who reviewed the essay remarked that "Science
articles are not mystery stories with a whodunit revealed at the end." This
article, however, comes as close to a whodunit mystery as any I have ever
known in a science publication. In the essay, I have solved the mystery to
the best of my knowledge.
David London
Learn about pegmatites and join the Pegmatite Interest Group at
Welcome, Richard. I get no feedback whatsoever on these essays. At least notes like yours confirm that the posts are seen.
David London
Pegmatite Interest Group: http://www.minsocam.org/msa/Special/Pig/
From: MSA-Pegmatite Interest Group msa-pegmatite@minlists.org
Sent: Monday, August 16, 2021 12:28 PM
To: 'MSA-Pegmatite Interest Group' msa-pegmatite@minlists.org
Subject: [MSA-pegmatite] Re: Essays on the Study of Pegmatites
Thanks Dave,
I did not have this digitally and need to reread.
Richard Bedell
Reno NV
Cell (775) 233-2212
From: MSA-Pegmatite Interest Group msa-pegmatite@minlists.org
Sent: Sunday, August 15, 2021 7:48 AM
To: msa-pegmatite@minlists.org
Subject: [MSA-pegmatite] Essays on the Study of Pegmatites
Hello PIGs:
My eighth article is posted under the Essays on the Study of Pegmatites heading on PIG. The article is:
Jahns, R.H. and Tuttle, O.F. (1963) Layered pegmatite-aplite intrusives. Mineralogical Society of America Special Paper, 1, 78-92.
The MSA has granted permission to post the article along with the essay. Though not nearly as well known as some of Jahns’ other publications, this one was hugely important for its presentation of what became known as the Jahns-Burnham model for pegmatites and the experimental evidence for it. The only new data in the paper are five analyses of pegmatites, and these are given only in a summary form without explanation of methods or other details. The remainder of the article consists of Jahns’ elucidation of his model. O.F. “Frank” Tuttle was an experimental petrologist; one might expect the article to feature experimental work done by him. The answer is, yes, and no. Read the article, find the short passage that refers to the “model of Jahns and Burnham (1963)”, and the very brief discussion of experimental evidence for it. A colleague who reviewed the essay remarked that “Science articles are not mystery stories with a whodunit revealed at the end.” This article, however, comes as close to a whodunit mystery as any I have ever known in a science publication. In the essay, I have solved the mystery to the best of my knowledge.
David London
Learn about pegmatites and join the Pegmatite Interest Group at
http://www.minsocam.org/msa/Special/Pig/https://urldefense.proofpoint.com/v2/url?u=http-3A__www.minsocam.org_msa_Special_Pig_&d=DwMFAg&c=qKdtBuuu6dQK9MsRUVJ2DPXW6oayO8fu4TfEHS8sGNk&r=ZmOsylkBnBBfcI7m1kIn2w&m=14I_8Ej_fNTuOH1thL-rLUHxH370UIFyUSZCBlHyhUE&s=uJQNCBFQJkC44NB5go-z3BU5WGdBQ0JFj5ejChsF_Kw&e=