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Friedrich Ahlfeld
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Journal Article

The Chicote tungsten deposit, Bolivia

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 September 1945
Economic Geology (1945) 40 (6): 394–407.
DOI: https://doi.org/10.2113/gsecongeo.40.6.394
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Zoning in the Bolivian tin belt

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 September 1941
Economic Geology (1941) 36 (6): 569–588.
DOI: https://doi.org/10.2113/gsecongeo.36.6.569
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Genesis of some sulphur deposits of the U.S.S.R.; discussion

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 November 1937
Economic Geology (1937) 32 (7): 974–976.
DOI: https://doi.org/10.2113/gsecongeo.32.7.974
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The tin deposits of Llallagua, Bolivia; discussion

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 March 1936
Economic Geology (1936) 31 (2): 219–221.
DOI: https://doi.org/10.2113/gsecongeo.31.2.219
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The Bolivian tin belt

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 January 1936
Economic Geology (1936) 31 (1): 48–72.
DOI: https://doi.org/10.2113/gsecongeo.31.1.48
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The tin ores of Uncia-Llallagua, Bolivia

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 May 1931
Economic Geology (1931) 26 (3): 241–257.
DOI: https://doi.org/10.2113/gsecongeo.26.3.241
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Supergene cassiterite in tin veins; discussion

Friedrich Ahlfeld
Journal: Economic Geology
Published: 01 August 1930
Economic Geology (1930) 25 (5): 546–548.
DOI: https://doi.org/10.2113/gsecongeo.25.5.546
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