{"id":1355,"date":"2023-10-26T21:28:05","date_gmt":"2023-10-27T02:28:05","guid":{"rendered":"https:\/\/geosocmn.org\/gsmpaypal\/geology-near-the-st-croix-river-valley\/"},"modified":"2023-10-26T21:28:05","modified_gmt":"2023-10-27T02:28:05","slug":"geology-near-the-st-croix-river-valley","status":"publish","type":"post","link":"https:\/\/geosocmn.org\/gsmpaypal\/geology-near-the-st-croix-river-valley\/","title":{"rendered":"Geology near the St. Croix River Valley"},"content":{"rendered":"

Field Trip Title: <\/strong>Geology near the St. Croix River Valley<\/p>\n

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

Field Trip Start Date: <\/strong>September 13, 2008<\/p>\n

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

Field Trip End Date: <\/strong> September 13, 2008<\/p>\n

Field Trip End Time: <\/strong>5:00 PM<\/p>\n

Field Trip Subject: <\/strong>
\nGeology near the St. Croix River Valley<\/p>\n

Field Trip Leader: <\/strong>Dr. Anthony (Tony) Runkel and Terry Boerboom
\nLeader Information <\/strong>Both from the Minnesota Geological Survey <\/p>\n

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

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

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GEOLOGICAL\u00a0 SOCIETY\u00a0 OF\u00a0 MINNESOTA<\/strong><\/p>\n

2008 Field Trip # 3 – Geology near the St. Croix River Valley<\/em><\/strong><\/p>\n

\u00a0<\/strong>\u00a0<\/p>\n

DATE:<\/em><\/strong>\u00a0 \u00a0September 13 (Saturday – 8:00 am to about 5:30+ pm)<\/p>\n

LEADERS:<\/em><\/strong>\u00a0\u00a0 Dr. Anthony (Tony) Runkel and Terry Boerboom; both from the Minnesota Geological Survey<\/p>\n

HIGHLIGHTS:<\/em><\/strong>\u00a0\u00a0\u00a0 This trip will focus on the area of the St. Croix River Valley from near the town of Sandstone, MN to around Interstate Park at Taylors Falls.\u00a0 The tentative schedule includes two stops near Sandstone and two or three near Interstate Park.\u00a0 Note: Rock collecting in state parks is prohibited.\u00a0 There\u00a0may<\/em>\u00a0be limited opportunities for collecting outside of parks.<\/p>\n

We should arrive by bus at about 9:45 am in the area of Sandstone, Minnesota to view the Hinckley Sandstone. \u00a0This sandstone is believed to be Proterozoic in age, and is a pure quartz sandstone that has traditionally been interpreted to be a record of the final stages of deposition in the Midcontinent Rift system, perhaps deposits of a delta that accumulated in a lake.\u00a0 However, recent studies suggest that parts of the Hinckley Sandstone were instead deposited as wind-blown dune complexes. \u00a0The Hinckley Sandstone is also karstic: it contains small sinkholes that are developed over large open fracture systems, which permit rapid groundwater flow, much like the better known carbonate rocks of southeastern Minnesota. \u00a0Our stops will allow participants to view evidence for a windblown sand interpretation for the Hinckley, as well as some of the karstic features such as springs and large open fracture systems. [description by A.R. and T.B.]<\/p>\n

Lunch in Robinsons Park in town of Sandstone.<\/p>\n

In the afternoon we will travel to Interstate Park, where we will see Proterozoic basalt flows that are part of the Midcontinent Rift System. A half billion years after basalt flows were laid down at Interstate Park, they stood as steep-sided islands in the Paleozoic seas, and we will visit an outcrop that exposes the deposits of a bouldery shoreline along one of these islands in Cambrian time.\u00a0 Additionally, there will be a brief discussion of the glacial-related history of the St Croix River Valley, including the formation of potholes developed in the basalt flows at Interstate Park. [A.R.]<\/p>\n

WHEN AND HOW:<\/em><\/strong>\u00a0\u00a0\u00a0\u00a0On Saturday morning, we will meet at\u00a0Prince of Peace Lutheran Church and School<\/strong>, 7700 Monroe Street NE,\u00a0MAP<\/a>\u00a0in Spring Lake Park. \u00a0Use the parking lot on the north side of the building (most distant from Osborne Road) and any parking spot away from the handicap parking area.\u00a0 *see map on back*\u00a0 We will take our lunches, beverages, and equipment (e.g. notebooks, cameras), leave our cars in the lot and climb aboard our Voigt deluxe coach (seats 56, with toilet, A\/C, PA system, DVD, and Internet) and head for Sandstone, MN.\u00a0Check-in begins 8:00 AM.<\/strong>\u00a0\u00a0Please arrive before 8:00 to allow for a timely departure at 8:15.<\/strong>\u00a0\u00a0We should return to the parking lot no later than 6:00 PM.<\/p>\n

COST:<\/em><\/strong>\u00a0\u00a0\u00a0 Cost of the one-day field trip includes the bus ride, guidance by two superstar geologists, and a written trip guide = $25\/member.\u00a0 Nonmembers pay $40.\u00a0 Registration payment must be received by the deadline: Wednesday, September 3.\u00a0 When 54 seats have been reserved, a waiting list will be started.\u00a0 To register, send your check (payable to GSM<\/em>) or money order (do not send cash<\/em>) to:\u00a0\u00a0GSM; c\/o Diane Lentsch; 5533 43rd<\/sup>\u00a0Ave. So; Minneapolis, MN 55417<\/strong>\u00a0\/ Phone: (612) 725-0771. \u00a0Please include your name, phone number, and the names and numbers of any others that will be with you.\u00a0 Also, include your cell phone number if you will have it with you on Saturday, so that we can reach you if you don\u2019t show.\u00a0 Participants must bring their own lunch and beverages.<\/p>\n

PREPARATION:<\/em><\/strong>\u00a0\u00a0\u00a0 Come prepared to have fun in any type weather or terrain.\u00a0 Generally, sites will have mostly flat terrain, with paths, but perhaps a fallen tree or a few blocks of sandstone to climb across.\u00a0 Each field trip participant will be required to sign a waiver of liability prior to the start of the field trip.\u00a0 This is a one day trip.\u00a0 You will need to bring a lunch and beverage.\u00a0 No alcoholic beverages or smoking allowed.<\/p>\n

 <\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n

Field Trip Details:<\/strong>\u00a0<\/p>\n

Attach Documents <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Field Trip Completed<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"nf_dc_page":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[34],"tags":[],"class_list":["post-1355","post","type-post","status-publish","format-standard","hentry","category-field-trips"],"acf":[],"taxonomy_info":{"category":[{"value":34,"label":"Field Trips"}]},"featured_image_src_large":false,"author_info":{"display_name":"ars1","author_link":"https:\/\/geosocmn.org\/gsmpaypal\/author\/ars1\/"},"comment_info":0,"category_info":[{"term_id":34,"name":"Field Trips","slug":"field-trips","term_group":0,"term_taxonomy_id":34,"taxonomy":"category","description":"","parent":0,"count":49,"filter":"raw","cat_ID":34,"category_count":49,"category_description":"","cat_name":"Field Trips","category_nicename":"field-trips","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/posts\/1355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/comments?post=1355"}],"version-history":[{"count":0,"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/posts\/1355\/revisions"}],"wp:attachment":[{"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/media?parent=1355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/categories?post=1355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geosocmn.org\/gsmpaypal\/wp-json\/wp\/v2\/tags?post=1355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}