Spring Hill Chert
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 16 May 1998
name: label: Collector
content: Jack Holland
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1722 (Spring Hill Chert): Provenience includes gravel bedrock and roadcut. Not a collection from archaeological context. Known collection procedure. Collection includes raw material, outer surface, surrounding matrix, and naturally-weathered specimens.
label: Notes
content: L-1722 (Spring Hill Chert): Very large lens of this grey chert of brittle consistency.
label: Notes
content: Spring Hill Chert is a light gray (7.5YR7), gray (7.5YR6), or dark gray (2.5YR4) chert. When heat-treated it can be light gray (7.5YR7) to reddish gray, except for oval patches formed by trace fossils which turn pink (5YR 7/3). When weathered it becomes very pale brown. Silicified and recrystalized fossils are common. It has a smooth, ordinary texture. Internal structure mottled and irregularly layered. Deposits include chunks, slabs, and blocks.
label: Notes
content: Geology remarks: Epoch- Pennsylvanian, Series- Upper Pennsylvanian, Stage- Missourian, Group- Lansing, Form- Spring Hill/Plattsburg, Member- Spring Hill
label: Notes
content: Location remarks: Uplands of Platte County, MO, at elevations ranging from 241 to 259 m (790-850 ft); Type section NE1/4 of NE, T51N, R33W, Platte County, MO; Spring Hill Chert sources located along the Missouri River near Kansas City; Clay County, MO.
label: Notes
content: Archaeology remarks: Used by the Late Archaic inhabitants of Labras Lake, American Bottom, Illinois, according to Phillips.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 10
place: label: Place
content: Clay County, Missouri, United States, North America
topic: label: Topic
content: Archaeology
setName: label: See more items in
content: Anthropology
dataSource: label: Data Source
content: NMNH - Anthropology Dept.
identifier: label: Accession Number
content: 2071475
label: USNM Number
content: A598642-0
objectType: label: Object Type
content: Stone