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Ontario, Canada For a full-size image just click on the thumbs, but beware of large file sizes!  | | | Storm berm forming beach, pillow lavas in background | Close up views of Precambrian (Archean) pillow basalt in the Schreiber-Hemlo Greenstone Belt | Schreiber Beach, North Shore of Lake Superior This is the classic locality of the Gunflint Chert where ~1.88 Ga cyanobacteria and other microfossils were first discovered in the 1950's. According to Norm, the Paleoproterozoic Gunflint Chert rests unconformably on the 2.7 Ga pillow basalts (a > 800 million year time gap!). (Photos by Prof. Norm King, Univ. So. Indiana) | | Kakabeka Falls Provincial Park Paleoproterozoic Gunflint Chert. | Stromatolite Paleoproterozoic Gunflint Chert (stromatolite ~ 1.9 Ga) | (Photos by Prof. Norm King, Univ. So. Indiana) | | Close Up of Stromatolite Microfossils occur only in the stromatolites in black "waxy" chert zones. This stromatolite is just a few feet above the 800 million year gap. | Ancient Mud Cracks Top of outcrop. | (Photos by Prof. Norm King, Univ. So. Indiana) | | banded unfossiliferous beds | banded chert forming a "teepee" structure | Close Up of Gunflint Chert (Photos by Prof. Norm King, Univ. So. Indiana) Uranium Oxides/Hydroxides in the Martinenda Formation, Pronto Mine Road, North Shore of Lake Huron Uraninite (UO2) and hydrous uranium oxides occur within 30 feet of the base of the formation, which rests on Archean granite. The ore is not dangerously radioactive (naturally occurring U is primarily an a particle emitter) but you can see it does register on a counter. (Photos by Prof. Norm King, Univ. So. Indiana) Cobalt Group, Lorrain Formation at Rydal Bank, North Shore of Lake Huron Beautiful jasper pebble conglomerate (~ 2.2 to 2.3 billion years old!) (Photos by Prof. Norm King, Univ. So. Indiana)  |   | | Bruce Limestone | Top: Polished piece of Conglomerate from the Lorraine | | | Bottom: Siltstone Diamonds in the Bruce Limestone | (Photos by Prof. Norm King, Univ. So. Indiana) | | | Glacially polished outcrop near Bruce Mines | Imbricated pebbles in the formation near Elliot Lake | Gowganda Formation (underlies the Lorrain Formation) (Photos by Prof. Norm King, Univ. So. Indiana) | | | Varves (glacial lake bed deposits) near Haileybury | Close Up of Alternating Beds | Pleistocene (Photos by Prof. Norm King, Univ. So. Indiana)
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Scenic Geology 
