Shopping Cart -

Your cart is currently empty.
Upgrade to today
for only an extra Cxx.xx

You get:

plus This issue of xxxxxxxxxxx.
plus Instant access to the latest issue of 410+ of our top selling titles.
plus Unlimited access to 33000+ back issues
plus No contract or commitment. If you decide that PocketmagsPlus is not for you, you can cancel your monthly subscription online at any time. Auto-renews at $16.99 per month, unless cancelled.
Upgrade for $1.39
Then just $16.99 / month. Cancel anytime.
Learn more
Pocketmags Digital Magazines
CA
Pocketmags Digital Magazines
   You are currently viewing the Canada version of the site.
Would you like to switch to your local site?
Read anywhere Read anywhere
Ways to pay Pocketmags Payment Types
Trusted site
At Pocketmags you get
Secure Billing
Great Offers
Web & App Reader
Gifting Options
Loyalty Points
9 MIN READ TIME

FIELD NOTES

More ‘Black Smoker’ Examples

I enjoyed Bob Jones’ article in the June, 2019 issue of Rock & Gem on submarine “black smoker” hot spring deposits. Another ancient example of such a deposit was well exposed in the Flambeau Copper Mine open pit, Ladysmith, Wisconsin when it was mined from 1993 to 1997.

READ MORE
Purchase options below
Find the complete article and many more in this issue of Rock&Gem Magazine - August 2019
If you own the issue, Login to read the full article now.
Single Digital Issue
August 2019
$8.49
This issue and other back issues are not included in a new Rock&Gem Magazine subscription. Subscriptions include the latest regular issue and new issues released during your subscription.
Annual Digital Subscription
Only $ 3.17 per issue
SAVE
55%
$37.99
6 Month Digital Subscription
Only $ 3.66 per issue
SAVE
48%
$21.99
Monthly Digital Subscription
Only $ 6.99 per issue
$6.99

View Issues

About Rock&Gem Magazine

Rock & Gem August 2019,