Concepedia

Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana

Harry Wynn Smedes

USGS professional paper · 1966 · 40 citations · 15 references

DOIFull text

Open access

Abstract

1. Geologic map of the northern Elkhorn Mountains.

References

15

Ash-flow tuffs: Their origin, geologic relations, and identification

Clarence S. Ross, Robert L. Smith · USGS professional paper · 1961 · 413 citations · Full text

, , +17

PROPOSED CLASSIFICATION OF VOLCANICLASTIC SEDIMENTS AND ROCKS

Richard V. Fisher · Geological Society of America Bulletin · 1961 · 361 citations

, , +15

Zones and zonal variations in welded ash flows

R. L. Smith · USGS professional paper · 1960 · 292 citations · Full text

, , +9

CORRELATION OF THE CRETACEOUS FORMATIONS OF THE WESTERN INTERIOR OF THE UNITED STATES

W. A. Cobban, John B. Reeside · Geological Society of America Bulletin · 1952 · 267 citations

, , +13

A Descriptive Petrography of the Igneous Rocks

Nature · 1938 · 137 citations

, , +8