GSM 2015 July Keweenaw MI - Day 4
Nov 16, 2015Public
Photo: I started Saturday morning with a walking tour of the MTU campus. There are lots of beautiful garden spots on campus.
Photo: This is the MTU mascot, the Husky.
Photo: Next photo shows the specimen.
Photo: 4836 pounds of native copper
Photo: The Keweenaw Boulder Garden, established on campus in 2010,  features glacial boulders, examples of the foundational rock of the Copper Country.
Photo: This garden is a dream fulfilled for Geology Professor Bill Rose.
Photo: Bill Rose: "For 40 years I have noticed that glacial boulders are abundant and beautiful in the copper country, but they are underutilized for their educational, research and artistic potential.  I have looked constantly for excellent examples, finding an occasional gem, but never a collection that is together of great interest, until now."
Photo: "While working on the design of a field class in earth sciences, I entered the Mohawk Sand and Gravel quarry between Ahmeek and Copper City.  There, as part of a much larger group of boulders harvested from glacial outwash, I found an extraordinary group of about 30-35 boulders which are naturally-shaped (glacially transported) examples of all the major rock types of the Peninsula, including dramatic examples of the important individual rock types that come from solidification of huge lava flows (vesicular flow tops, fissures, pegmatites, ophitic portions), conglomerates, sandstones."
Photo: "We supplemented that collection with two excellent boulders that were already on campus, near the SDC.  Each of the boulders is a museum specimen, but they are larger and more robust than those stored inside.  They have been outside for decades and do not need shelter. The size of these rocks is mostly 1-2 meters in diameter."
Photo: "They have been arranged artistically in a small plaza to allow for people to walk around them.   They can be used in geological and material science classes and would also be an attraction to visitors."
Photo: "The timing and conception of this project was was triggered by the MiTEP research project about earth science teaching, which emphasizes hands on teaching of field topics.  This project very much speaks to that need, and it is expected to be a model for similar projects on other campuses."
Photo: "They [are] supplemented with educational materials which [were] developed for research and teaching purposes."
Photo: "The garden also reflects a new international focus on Geoheritage."
Photo: We made a quick stop at Jacob's Falls on the way to our first stop on the day's tour.
Photo: Jacob's Falls is a mainstay for Keweenaw visitors. The main drop is visible from your car, a tall slide down smooth rock that pours from an impressive cut above.
Photo: Out gathering point for Day 4: A viewing platform overlooking Lake Superior near Eagle Harbor Lighthouse.
Photo: Eagle Harbor Lighthouse
Photo: The purpose of Day 4 was to see and understand the Keweenaw's black rocks and their volcanic history - Earth's largest ever lava outpouring.
Photo: Eagle Harbor Light is a working lighthouse at Eagle Harbor, Keweenaw County, MI. It sits on the rocky entrance to Eagle Harbor and is one of several light stations that guide mariners on Lake Superior across the northern edge of the Keweenaw Peninsula. The original lighthouse, built in 1851, was replaced in 1871 by the present red brick structure
Photo: The present structure was built in 1871 using a design that had previously been used for Chambers Island Lighthouse in Wisconsin; and McGulpin Point Light in 1868. The octagonal brick light tower is ten feet in diameter, with walls 12 inches thick.
Photo: The tower supports a 10-sided cast iron lantern. The Lighthouse was manned by a head keeper and two assistant keepers