WebFeb 23, 2024 - Early Archaic Bifaces photographed by Iowa Archaeology (@iowaarchaeology) on Instagram: “These two early archaic bifaces made of heat-treated Maynes Creek chert were found near Whiting,…” Web2 mrt. 2024 · The Grand Meadow Chert Quarry (GMC Quarry) is the source of an exceptionally high-quality and distinctive chert used for making stone tools, employed …
Geologic units in Hardin county, Iowa - USGS
Maynes Creek Chert. Five varieties noted: 1. cream, 2. speckled, 3. fossiliferous, 4. gray, and 5. green. Natural Form: Description of Physical Characteristics: Color: Maynes Creek chert is a homogenous opaque and comes in a variety of colors including; very pale gray to light gray, and green. Webchert, Knife River flint, Maynes Creek chert, Sioux quartzite, Tongue River silica, and Warsaw chalcedonic chert. Feature 8 also contained one fragmented and two complete … bofton news press
(PDF) The Grand Meadow Chert Quarry - ResearchGate
Web16 mei 2016 · Source areas for Maynes Creek cream chert are abundant in central Iowa and were used extensively in that region by prehistoric peoples (Morrow 1994a:121). Morrow (1994a:121) states that coarse pieces of this vari- ety were used in southeast Iowa, however, and were obtained from local glacial till deposits in that re- gion. WebMinor: shale, gray, calcareous; oncolitic limestone; glauconite; chert; breccia. Maximum thicknesses in northern Iowa 150-170 ft (45-52 m); interval thins to south and southeast … Web100 W3AA Radio Amateur Call Boo\ Magazine CARDS FROM FOREIGN STATIONS ONLY MAY BE SENT VIA: W3KT - JESSE BIEBERMAN, P. 0. BOX 400, BALA-CYNWYD, PA. QSL CARDS MAY BE SENT VIA THE N bof traduzione