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Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)

Aase, James H.; West, Wanda J.; Anderson, Raymond R.
Iowa,   pp. 201-211 ff. PDF (1.1 MB)


Page 202

202 
MINERALS YEARBOOK, 1978-79 
During the biennium 1978-79, cement in- the discovery of a precambrian taconite
dustry activities in Iowa were highlighted body south of Matlock in eastern
Sioux by the completion of an expansion program County. The Matlock taconite
body is deat the Mason City plant of Lehigh Portland scribed as a deposit
of alternating bands of Cement Co.~ the start of construction of a 
black magnetite and chert at least 80 feet 
new plant, near Davenport, by Martin- 
Marietta Corp.; and the sale of the Mar- thick and lying at a depth of about
600 feet quette Co. plant in Des Moines. below the surface. The taconite
body was 
In March 1979, information was released further described as roughly circular
in 
by the Iowa Geological Survey announcing shape with a diameter of a few miles.
Table 2.—Value of nonfuel mineral production in Iowa, by county'
(Thousands) 
Co t 1977 1978 Minerals produced in 1978 
 un y in order of value 
w 
w 
$480 
w 
w 
w 
w 
872 
w 
w 
281 
w 
71 
400 
w 
w 
w 
721 
w 
429 
w 
2,763 
2,142 
w 
671 
w 
656 
w 
w 
359 
w 
320 
1,246 
w 
w 
w 
463 
27 
26 
w 
w 
4,336 
w 
w 
374 
w 
69 
w 
w 
w 
w 
1,832 
w 
114 
w 
4,778 
w 
24 
43 
w 
w 
w 
$757 
2,864 
w 
w 
w 
860 
637 
w 
216 
w 
71 
475 
w 
w 
w 
372 
w 
790 
230 
3,192 
1,809 
w 
w 
w 
703 
w 
5,643 
308 
w 
432 
1,272 
773 
1,098 
561 
398 
27 
26 
w 
1,483 
5,040 
w 
244 
w 
1,579 
w 
w 
w 
w 
3,144 
1,862 
w 
156 
w 
6,622 
w 
13 
w 
w 
See footnotes at end of table. 
Adair ~ 
Adams -- 
Allamakee_______________________ 
Appanoose -.                       
Audubon                         
Benton —- ____________ 
Black Hawk______________________ 
Boone__________________________ 
Bremer — -_______________________ Buchanan                    
BuenaVista                       
Butler__________________________ 
Calhoun -_______________________ 
Carroll —-_______________________ 
Cass____________________________ 
Cedar___________________________ 
CerroGordo______________________ 
Cherokee -_______________________ 
Chickasaw_______________________ 
Clarke --_______________________ 
Clay____________________________ 
Clayton - -_______________________ 
Clinton -________________________ 
Crawford -_______________________ 
Dallas 
Davis___________________________ 
Decatur -_______________________ 
Delaware 
Des Moines_______________________ 
Dickinson________________________ 
Dubuque -_______________________ 
Emmet --_______________________ 
Fayette~_______________________ 
Floyd___________________________ 
Franklin -_______________________ 
Fremont 
Greene__________________________ 
Grundy_________________________ 
Guthrie_________________________ 
Hamilton________________________ 
Hancock________________________ 
Hardin__________________________ 
Harrison________________________ 
Henry                           
Howard_________________________ 
Humboldt________________________ 
Ida____________________________ 
Iowa___________________________ 
Jackson__________________________ 
Jasper__________________________ 
Jefferson________________________ 
Johnson_________________________ 
Jones___________________________ 
Keokuk_________________________ 
Kossuth_________________________ 
Lee 
Linn____________________________ 
Louisa__________________________ 
Lucas___________________________ 
Lyon___________________________ 
Madison_________________________ 
Stone 
Do. 
Stone, sand and gravel. 
Stone, clays, sand and gravel. 
Sand and gravel. 
Stone, sand and graveL Do. 
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Stone, sand and graveL 
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Sand and gravel. 
Stone, sand and gravel. 
Sand and gravel. Do. 
Stone. 
Stone, sand and gravel. 
Cement, stone, sand and gravel, clays. 
Sand and gravel. 
Stone, sand and gravel. 
Stone. 
Sand and graveL 
Sand and gravel, stone. 
Stone, sand and gravel. 
Sand and graveL 
Sand and gravel, clays. 
Stone. 
Do. 
Stone, sand and gravel. 
Gypsum, stone, sand and graveL 
Sand and graveL 
Stone, sand and gravel. 
Sand and gravel. 
Stone, sand and gravel. Do. 
Stone, sand and gravel, clays. 
Stone, sand and gravel. 
Sand and gravel. Do. 
Do. 
Stone, sand and gravel. 
Stone, sand and gravel, peat. 
Stone, sand and gravel. 
Do. 
Do. 
Do. 
Do. 
Sand and gravel. 
Stone, sand and gravel. 
Sand and gravel, stone. 
Stone. 
Stone, sand and gravel. Do. 
Stone. 
Sand and gravel. 
Stone, sand and gravel. 
Stone, sand and gravel, peat. 
Stone, sand and gravel. 
Stone. 
Sand and gravel. 
Stone, clays. 


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