L-227 (Iowa Chert): Collection includes raw material, modern flint knappers' work, and heat-treated specimens.
L-227 (Iowa Chert)
(Information obtained from Burlington Type Sheet - Noted as probably Burlington by J.D.H. on Inventory Sheet) Burlington Chert is also known as Avon, Bowling Green, Crescent, Crescent Hills, Crescent Quarry, Grimes Hill, High Ridge, Hinkson Creek, Noix Creek, Hominy Creek, Iowa Burlington, Kampsville, Marshall, Marshall Mediocrity, Republic, St. Augustine, or Whetstone Creek. It is red, blue, green, white, brown, gray, pink, purple, yellow, tan, tan with plain, mixed, mottled, or striped colors. It becomes white, light gray, red, or pink when heat-treated. It becomes white to brownish gray when weathered. I may have Grapolite fossil inclusions of the Dendroidea order. It has a calcareous, coarse to very fine grain, vitreous, chalcedony-like texture. Deposits include nodular and tabular. SEE ALSO: AVON CHERT
Geology remarks: (Information obtained from Burlington Type Sheet - Noted as probably Burlington by J.D.H. on Inventory Sheet): Geology: Epoch- Mississippian, Series- Middle Mississippian, Stage- Osagean; Valmeyeran in Illinois, Form- Burlington Limestone
Location remarks: (Information obtained from Burlington Type Sheet - Noted as probably Burlington by J.D.H. on Inventory Sheet) Outcrops in Illinois, Iowa, Missouri, and Arkansas; Hinkson Creek, Columbia, Boone Co., MO.
Archaeology remarks: (Information obtained from Burlington Type Sheet - Noted as probably Burlington by J.D.H. on Inventory Sheet) Used from Paleo to late Woodland
