[Talk-GB] Geological Data

Thu Oct 31 15:20:04 UTC 2013

The email below came through on the carto-soc mailing list today:

Dear all 

We have several thousand U.S. Geological Survey 1:24,000 and 1:62,500 scale
maps available to a good home. An institution is preferred but as long as
the maps are not sold, requests from individuals will also be considered.  

Unfortunately there is no list of the maps. There are maps of every state,
though there are more maps for some states than others and no state is
complete. The dates vary though many are from the 1950s and 1960s. 

*	We would prefer to send all of the maps of a particular scale (or
both scales) to one institution.

*	The maps are in a big pile but we might be able to identify maps of
particular states and just send these. It will not, however, be possible to
select individual sheets. 

*	The maps are free but delivery costs will probably need to be met by
the receiving institution/person. 

Looking forward to hearing from you! 

Many  thanks 

Anne 

-- 
Anne Taylor
Head of Map Department, Cambridge University Library, West Road, Cambridge
CB3 9DR
Tel: 01223-333041.   Fax: 01223-333160.   email: aemt2 at cam.ac.uk
http://www.lib.cam.ac.uk/deptserv/maps/

!!VAT NUMBER: G.B. 823 8476 09!!

From: Michael Collinson [mailto:mj.collinson at gmail.com] 
Sent: 30 October 2013 16:10
To: Talk-GB at openstreetmap.org
Subject: Re: [Talk-GB] Geological Data

It is an area that interests me too, explicitly surface expression of
geology, (outcrops and faults mostly) and geomorphology ("interesting"
drumlins, meander loops, landslips, ...).

My personal conclusion is that by all means do low-key experimentation but
that any systematic mapping is better off for all in a separate but
compatible database a la Open Historical Map ... and a lot easy to implement
than the historic map.

Like Jerry I still have all my old field books and hand-drawn OS ?1:5000
overlays.  Do students still do it like that? If so, one thing that
intrigues me as a project is to set up a system whereby students could map
digitally into an OSM-friendly system so that progressively all those little
squares build up a comprehensive outcrop map of all the UK.  There is
probably all sorts of small stuff here and there buried in student
assignments that was missed by the pros. Collated together it might also
provide a seriously useful academic resource.

I already map historic mining activity in northern Yorkshire and Co. Durham
directly into OSM as it is something that can be systematically migrated to
another resource when the time comes.  Motivated by Jonathan's posting, I
have just done a knowledge dump [1] .  I would greatly welcome other joining
me elsewhere the country.  I map from NPE, OS25K, Bing imagery and local
knowledge.  Bing imagery is fascinating in moorland areas.  See [2] for
example of a place I have stayed at several times completely unaware that
the close proximity is riddled with old, probably lead, mine shafts.

Mike

[1]
https://wiki.openstreetmap.org/wiki/WikiProject_United_Kingdom/Historic_Mini
ng_Activity

[2] http://www.openstreetmap.org/#map=19/54.15584/-2.01688 Buckden,
Wharfedale example of mine shaft identification using Bing imagery.

On 11/10/2013 00:25, SK53 wrote:

I had a very brief chat with someone at SotM touching on this.

I don't think the 1inch:10 mile data is at all useful in OSM: it's too
generalised and would result in huge awkward to maintain polygons. However
in many places the field geology is much more detailed and is both at a
scale compatible with OSM and there is potential for adding lots of detail.
This is particularly true in the "Classic Areas": Matlock, Arran, Craven
etc. I'm sure I'm not alone in having some old field notebooks (including
laboriously drawn maps traced from OS & Geological Survey) with masses of
such detail.

Probably the place to start is in finding a way to map classic exposures
(many will be protected as SSSIs). I know I've added a small cliff (quarry)
face which is the southernmost exposure of Magnesian Limestone, but I don't
know if I added any geology related tags at the time. 

Faults may be another feature suitable for mapping in the short term: in the
coal measures many of these will be adequately mapped on out-of-copyright
geology maps (I would think virtually all the 1 inch maps ought to be OOC by
now).

A related topic is old mines & quarries. There is a substantial literature &
community interested in the industrial archaeology of mining. In many places
the impact on the landscape & artefacts are still (all too) present. Adding
information about the geology alongside the archaeology would make mapping
much more informative (see things like the Manganese mines of Merionethshire
<http://www.davel.f2s.com/hendrecoed/Merioneth-Manganese/>  or Dolaucothi
<http://en.wikipedia.org/wiki/Dolaucothi_Gold_Mines> ). 

There are also aspects of geology (and possibly soils) which are of interest
to naturalists. Apart from broad things like lime-rich soils, one often
comes across fine detail: the thing which occurs to me are gley soils in
alluvial deposits. These locations are usually not quarried in gravel pits
and therefore have their original vegetation.

Enough ideas, if you want to waste a couple of hours the Borehole Database
on the IGS site is absolutely fascinating!

Jerry

On 10 October 2013 22:32, Jonathan <bigfatfrog67 at gmail.com> wrote:

Hi,

I was wondering whether anybody had discussed importing geological data into
OSM before.  We map surface details about the land cover and underground use
if it's man-made so why not geological data?

The BGS have a load of data at
http://www.bgs.ac.uk/opengeoscience/downloads.html.

So was wondering what people thought about it?

Jonathan

-- 
http://bigfatfrog67.me

_______________________________________________
Talk-GB mailing list
Talk-GB at openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-gb

_______________________________________________
Talk-GB mailing list
Talk-GB at openstreetmap.org
https://lists.openstreetmap.org/listinfo/talk-gb

  _____  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.3426 / Virus Database: 3222/6794 - Release Date: 10/30/13

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-gb/attachments/20131031/2abd227d/attachment-0001.html>