Microscopical petrography
By: by Ferdinand Zirkel ...
Series: United States Geological exploration of the fortieth parallel. [Report ... vol. VI]
Publisher: Gov't. Print. Off.
Published: 1876
Place of publication: Washington
Language: eng
Number of pages: 297
Subjects: Petrology -- United States
Notes: Half-title: Professional papers of the Engineer department, U.S. army. no. 18 ...
Table of contents: title: Introductory letter.; title: Letter to the geologist in charge.; title: Introductory.; title: Crystalline schists and related rocks.; title: Granite and granite-porphyry.; title: Felsite-porphyry and syenite.; title: Diorite, hornblende-porphyry, diabase, melaphyre, gabbro.; title: Propylite, quartz-propylite, hornblende-andesite, dacite.; title: Trachyte, rhyolite.; title: Basalts.-Leucite rocks.; title: Clastic rocks.