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Books Books 1 - 4 of 4 on Haubury slate gronp and upward we rarely find a bed so much altered that its sedimentary....
" Haubury slate gronp and upward we rarely find a bed so much altered that its sedimentary structure is altogether obsolesced, and the majority of the strata shows it very plain, while in the dioritic rocks, considered to... "
Reports - Page 209
1881
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Scientific Papers

Geology - 1884
...older than the latter are based on the litbological similarity of this formation with the dioritio group of the Marquette district and on the degree...the two groups, the dioritic and the iron-bearing. Iu the great succession of strata commencing with the Hanbury slate group and upward we rarely find...
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Bulletin - United States Geological Survey, Issues 55-64

Geology - 1889
...older than the latter arc based on the lithological similarity of this formation with the Uioritic group of the Marquette district and on the degree...the great succession of strata commencing with the Hanbnry slate group and upward we rarely find a bed so much altered that its sedimentary structure...
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The Greenstone Schist Areas of the Menominee and Marquette ..., Issues 62-65

George Huntington Williams - Schists - 1890 - 241 pages
...hillocks of diorite. * My reasons for holding the dinritic rocks south of the iron formation as older than the latter are based on the lithological...exhibited by the two groups, the dioritic and the iron-hearing. In the great succession of strata commencing with the Hanbury slate group and upward...
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Congressional Serial Set

United States - 1891
...than the latter are based on the lithological similarity of this formation with the dioritic gronp of the Marquette district and on the degree of metamorphism...the great succession of strata commencing with the Haubury slate gronp and upward we rarely find a bed so much altered that its sedimentary structure...
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