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mining-msg - 5/12/00


Medieval mining techniques.


NOTE: See also the files: salt-msg, salt-comm-art, occupations-msg, coins-msg, charcoal-msg, metals-msg, metalworking-msg, blacksmithing-msg.





This file is a collection of various messages having a common theme that I  have collected from my reading of the various computer networks. Some messages date back to 1989, some may be as recent as yesterday.


This file is part of a collection of files called Stefan's Florilegium. These files are available on the Internet at: http://www.florilegium.org


I  have done  a limited amount  of  editing. Messages having to do  with separate topics  were sometimes split into different files and sometimes extraneous information was removed. For instance, the  message IDs  were removed to save space and remove clutter.


The comments made in these messages are not necessarily my viewpoints. I make  no claims  as  to the accuracy  of  the information  given by the individual authors.


Please  respect the time  and  efforts of  those who have written  these messages. The  copyright status  of these messages  is  unclear at this time. If  information  is  published  from  these  messages, please give credit to the originator(s).


Thank you,

    Mark S. Harris                  AKA:  THLord Stefan li Rous

                                          Stefan at florilegium.org



From: kuijt at alv (David Kuijt)

Date: 22 Oct 91 14:40:14 GMT

Organization: Center for Automation Research, Univ. of Md., College Park, MD 20742


Cariadoc started a thread (with the aid of NicMaoilan) on things thought to

be period that aren't, and things thought not to be period that are.


Deep mining.  This summer, when I was in North Wales, I came upon the Great

Orme mines, an archeological dig (with guided tours).  I very highly

recommend the tour.  Anyway, the mine is Bronze Age, and they have so far

dug only a fraction of it out.  The fraction they have dug out extends

under more than 200 acres of land, to depths of more than 200 feet below

the surface.  And this is all without pumped air, pumped drainage, or any

metal tools.  It was a copper mine, and the tools they have found are

stone and horn and bone.


        Master Dafydd ap Gwystl                 David Kuijt

        Barony of Storvik                       kuijt at alv.umd.edu

        Kingdom of Atlantia                     (MD,DC,VA,NC,SC)



Date: Fri, 14 Jan 2000 12:55:43 MST

From: Mark Hinkle <mhinkle at rocketmail.com>

Subject: BG - Ye Olde Pollution

To: bryn-gwlad at Ansteorra.ORG


Taken from http://www.newscientist.com/ns/20000108/nshorts.html#16


YE OLDE POLLUTION | BLAME for Europe's lead pollution lies as much with

medieval metalworkers as with 20th-century polluters, a study of

Swedish lake sediments has revealed.  Ingemar Renber and his colleagues

at Ume University in Sweden identified periods of heavy lead pollution

by measuring relative amounts of lead-206 and lead-207 in mud from four

Swedish lakes. The ratio of these two isotopes has steadily declined

over the years, enabling the researchers to date the deposits. The

heaviest pollution tallied with the heyday of smelting in the Middle

Ages, beginning about AD 960 and peaking at 1530.


Renber and his colleagues conclude that half of Europe's existing lead

pollution pre-dates the industrial revolution, and that today's

antipollution laws are working well, turning back the clock

(Environmental Science & Technology, vol 33, p 4391). "We are now

probably below the 1530 level, and approaching 1200," he says.



The more things change, the more they stay the same. As I recall, the

Romans had enacted laws that prevented smelters from operating within a

certain distance of the cities (or something like that). And some

people think the problems we are face in the world are new...




Mark Hinkle                              IEEE     SCA


<the end>

Formatting copyright © Mark S. Harris (THLord Stefan li Rous).
All other copyrights are property of the original article and message authors.

Comments to the Editor: stefan at florilegium.org