{"id":1365,"date":"2023-10-26T22:42:09","date_gmt":"2023-10-27T03:42:09","guid":{"rendered":"https:\/\/geosocmn.org\/gsmpaypal\/the-mid-continent-rift-of-northwest-wisconsin-and-the-keweenaw-peninsula-of-michigan\/"},"modified":"2023-10-26T22:42:09","modified_gmt":"2023-10-27T03:42:09","slug":"the-mid-continent-rift-of-northwest-wisconsin-and-the-keweenaw-peninsula-of-michigan","status":"publish","type":"post","link":"https:\/\/geosocmn.org\/gsmpaypal\/the-mid-continent-rift-of-northwest-wisconsin-and-the-keweenaw-peninsula-of-michigan\/","title":{"rendered":"The Mid-Continent Rift of Northwest Wisconsin and the Keweenaw Peninsula of Michigan"},"content":{"rendered":"

Field Trip Title: <\/strong>The Mid-Continent Rift of Northwest Wisconsin and the Keweenaw Peninsula of Michigan<\/p>\n

Field Trip Status <\/strong>Field Trip Completed<\/p>\n

Field Trip Start Date: <\/strong>August 6, 2011<\/p>\n

Field Trip Start Time: <\/strong>8:00 AM<\/p>\n

Field Trip End Date: <\/strong> August 12, 2011<\/p>\n

Field Trip End Time: <\/strong>8:00 AM<\/p>\n

Field Trip Subject: <\/strong>
\nThe Mid-Continent Rift of Northwest Wisconsin and the Keweenaw Peninsula of Michigan<\/p>\n

Field Trip Leader: <\/strong>Randy Strobel
\nLeader Information <\/strong> <\/p>\n

Field Trip Starting Point: <\/strong><\/p>\n

Field Trip Itinerary: <\/strong><\/p>\n

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The Mid-Continent Rift of\u00a0Northwest Wisconsin\u00a0and the\u00a0Keweenaw Peninsula\u00a0of\u00a0Michigan\u00a0\u00a0\u00a0<\/strong><\/p>\n

This trip will survey the geology and the mining history of the mid-continent rift outside of\u00a0Minnesota. Our trip will begin on the north limb of the rift exploring the most southern outcrops of the rift basalts inWisconsin\u2019s Interstate park. At Pattison and\u00a0Amnicon\u00a0Falls\u00a0State parks\u00a0we will view a rift forming fault, the\u00a0Douglas\u00a0fault and three waterfalls. Next, on the\u00a0Bayfield\u00a0Peninsula\u00a0and Apostle\u00a0Islands\u00a0we will examine the mid-Proterozoic rift filling sandstones of the Bayfield and Oronto groups.<\/p>\n

We will then move to the south limb of the rift. This side of the rift is more steeply dipping and more mineralized than the north side of the rift in\u00a0Minnesota. The rift on the\u00a0Keweenaw Peninsula\u00a0was historically a major copper mining district. We will observe the volcanic rocks of the rift at\u00a0Copper\u00a0Falls, the Porcupine mountains, and the\u00a0Keweenaw Peninsula. We will also examine a gabbro intruded into the volcanic rocks, the Mellen gabbro. On the Keweenaw we will visit a few historic mines. The trip will end with the Copper Country Rock and mineral club annual rock show.<\/p>\n

If you might be participating on this trip please send an email indicating your level of interest to\u00a0gsm_rift_fieldtrip_2011@hotmail.com<\/a>\u00a0to get on the mailing list for further updates. Reservations for overnight lodging are recommended since the trip is during the main tourist season for the region. If you want to participate in the optional prepared mine dump collecting see the following web site and be sure to register soon:<\/p>\n

http:\/\/www.museum.mtu.edu\/copper_country_mineral\/index.html<\/a><\/p>\n

Further details and revisions will be forthcoming by email to those who have replied to the\u00a0MSN\u00a0Hotmail address above.<\/p>\n

Leader:<\/strong>\u00a0Randy Strobel<\/p>\n

Dates:<\/strong>\u00a0August 6- 12, 2011. August 13 and 14 are not formally part of the trip.<\/p>\n

Trip Fees<\/strong><\/p>\n

There will be no charge from the GSM for the trip. However, participants will be responsible for paying admission charges at each of the venues that we will be visiting. The charges are listed in the agenda below. Please plan on having $8\u00a0cash<\/em>\u00a0at the Delaware Mine and $12.50 at the Quincy Mine available so that we can write a single check and take advantage of the group rates.<\/p>\n

Things to bring you might not have thought of<\/strong><\/p>\n