What is the nationality of the geologist who declared Schoonmaker Reef significant ?
Schoonmaker Reef Schoonmaker Reef, also known as Wauwatosa Reef, Schoonmaker Quarry, Raphu Station or Francey Reef is a 425 million year-old fossilized reef in Wauwatosa, Wisconsin. It was discovered in 1844 by Increase A. Lapham and Fisk Day on the site of a quarry owned by the Schoonmaker Family. Geologist James Hall declared its significance in 1862. It was the first ancient reef described in North America, and among the first described in the world. It is located North of W. State St., between N. 66th St. and N. 64th St. extended, in Wauwatosa. It was declared a National Historic Landmark in 1997.
Flinders Island (South Australia) Flinders Island is an island in the Investigator Group off the coast of South Australia. It was named by Matthew Flinders after his younger brother Samuel Flinders, the second lieutenant on "HMS Investigator" in 1802. It is part of the Investigator Group Important Bird Area. The island has been subject to diamond exploration following the discovery of a wide range of kimberlite indicator minerals there. These minerals include chromite, pyrope, diopside, picroilmenite, forsterite, orthopyroxene, as well as small diamonds.