Database name: |
World Fe-oxide+/-Cu-Au-U (IOCG) deposits |
Compilers: |
Sunil S. Gandhi |
Release date: |
2015-03-04 |
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Deposit name(s): |
Chateaugay; Lyon Mountain ore belt; Lyon Mountain deposit group |
Political location(s): |
United States; Province or state: New York; Subprovince or locality: Clinton County; Nearest community: Standish Town |
Deposit clan (type): |
Kiruna-type |
Deposit (sub) types: |
intrusion-hosted; deposition of magnetite from sodic, ore-bearing solutions genetically related to the host Lyon Mountain leucogranitic suite, at 600 to 700 degrees C. |
Deposit status: |
past producer; Size category: 20 Mt; Status comments: Mining at Chateaugay and associated deposits on its trend (81, Phillips vein and Parkhurst), dates from 1870s and continued into 1970s. Total production from them was ~20 Mt of high grade iron ore. |
Geologic province: |
Grenville Province |
Geologic subprovince: |
Adirondack Mountains |
Deposit object located: |
mine site |
Commodities: |
Fe |
Mineralization styles: |
disseminated magnetite along bands ; massive magnetite bands in granitoid |
Geological ages: |
Late Mesoproterozoic (host rocks) |
Tectonic setting: |
continental orogenic belt-fold and thrust; convergent; Formal name: Ottawan orogen (host rocks) |
Host rocks: |
(1) intrusive; granite suite (Leucogranitic suite); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: catazonal; Metamorphic grade: granuliteIndividual lithologies: | leucogranite | Host rock stratigraphy: | Lyon Mountain Granitic Gneiss |
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Related igneous rocks: |
(1) intrusive; granite suite (Leucogranitic suite); Magma series: calc-alkaline; Depositional setting: continental |
Radiometric ages: |
Object dated: Host Rocks(1); Age - Ma: 1,055; +7; -7; Dating method: U-Pb; Concentrate: zircon; Source rock: K-rich leucogranitic gneiss; Formal name: Lyon Mtn. suite / sample AM 86-10; Event dated: host rock; Interpretive comment: outer zone of zircons dated; late stage Ottawan orogeny; zircon cores dated at 1152 +/- 11Ma; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Host Rocks(1); Age - Ma: 1,055; +7; -7; Dating method: U-Pb; Concentrate: zircon; Source rock: Na-rich leucogranitic gneiss; Formal name: Lyon Mtn. suite / sample AM 86-14; Event dated: host rock; Interpretive comment: outer zone of zircons dated; late stage Ottawan orogeny; zircon cores dated at 1141 +/-16 Ma; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Host Rocks(1); Age - Ma: 1,060; +10; -10; Dating method: U-Pb; Concentrate: zircon; Source rock: K-rich leucogranitic gneiss; Formal name: Lyon Mtn. suite / sample AM 86-4; Event dated: host rock; Interpretive comment: outer zone of zircons dated; late stage Ottawan orogeny; zircon cores dated at 1158 +/-16 Ma; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Host Rocks(1); Age - Ma: 1,048.7; +2.2; -2.2; Dating method: U-Pb; Concentrate: zircon; Source rock: K-rich leucogranitic gneiss; Formal name: Lyon Mtn. suite / sample 9-23-85-6; Event dated: host rock; Interpretive comment: outer zone of zircons dated; late stage Ottawan orogeny; zircon cores small or absent; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Host Rocks(1); Age - Ma: 1,047.3; +2.2; -2.2; Dating method: U-Pb; Concentrate: zircon; Source rock: fayalite granite; Formal name: Lyon Mtn. suite / sample AM 86-11; Event dated: host rock; Interpretive comment: massive phase of the gneissic intrusive emplaced at late stage of the Ottawan orogeny; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Host Rocks(1); Age - Ma: 1,047; +10; -10; Dating method: U-Pb; Concentrate: zircon; Source rock: fayalite granite; Formal name: Lyon Mtn. suite / sample CLFG; Event dated: host rock; Interpretive comment: Late Ottawan massive phase; outer zone of zircons dated; cores dated at 1155 +/-16 Ma; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Related igneous rocks(1); Age - Ma: 1,034; +10; -10; Dating method: U-Pb; Concentrate: zircon; Source rock: Zoned pegmatite (qtz-alb.) dyke; Formal name: Lyon Mtn. suite/ sample PL-PEG; Event dated: host rock; Interpretive comment: Pegmatite cuts leucogranitic gneiss of the suite; elsewhere postdates magnetite-rich zones in it; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72
Object dated: Related igneous rocks(1); Age - Ma: 1,026; +8; -8; Dating method: U-Pb; Concentrate: monazite; Source rock: Zoned pegmatite (qtz-alb.) dyke; Formal name: Lyon Mtn. suite/ sample PL-PEG; Event dated: host rock; Interpretive comment: The date is regarded as the time of monazite closure at ~ 725 degrees C.; Reference: McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000: Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications; Precambrian Research, Volume 109, p. 39 - 72 |
References: |
Alling, H. L., 1939 |
Metasomatic Origin of the Adirondack Magnetites |
Economic Geology, Volume 34, p. 141 - 172 |
Balsley, J. R.; Buddington, A. F., 1958 |
Iron-Titanium Oxide minerals, Rocks, and Aeromagnetic Anomalies of the Adirondack Area, New York |
Economic Geology, Volume 53, p. 777 - 805 |
Buddington, A. F., 1966 |
The Precambrian Magnetite Deposits of New York and New Jersey |
Economic Geology, Volume 61, p. 484 - 511 |
Chiarenzelli, J.; McLelland, J., 1991 |
Age and Regional Relationships of Granitoid Rocks of the Adirondacks Highlands |
Journal of Geology, Volume 99, p. 571 - 590 |
Collins, L. G., 1969 |
Host Rock Origin of Magnetite in Pyroxene Skarn and Gneiss and its Relation to Alaskite and Hornblende Granite |
Economic Geology, Volume 64, p. 191 - 201 |
Foose, M. P.; McLelland, J. M., 1995 |
Proterozoic low-Ti iron oxide deposits in New York and New Jersey: Relation to Fe oxide (Cu-U-Au-rare earth element) deposits and tectonic implications |
Geology, Volume 23, p. 665 - 668 |
Gallagher, D., 1937 |
Origin of Magnetite Deposits at Lyon Mountain, N.Y. |
New York State Museum Bulletin, p. 1 - 85 |
McLelland, J., 1984 |
Origin of Ribbon Lineation in Quartzofeldspathic Gneisses of the Adirondacks |
Journal of Structural Geology, Volume 6, p. 147 - 167 |
McLelland, J.; Daly, J. S.; McLelland, J. M., 1996 |
The Grenville Orogenic Cycle (ca. 1300-1000 Ma): An Adirondack Perspective |
Tectonophysics, p. 1 - 28 |
McLelland, J.; Hamilton, M.; Selleck, B.; McLelland, J. M.; Orrell, S. ; Walker, D., 2000 |
Zircon U-Pb Geochronology of the Ottawan Orogeny, Adirondacks Highlands, New York: Regional and Tectonic Implications |
Precambrian Research, Volume 109, p. 39 - 72 |
McLelland, J.; Morrison, J.; Selleck, B.; Cunningham, B.; Olson, C., 2001 |
Hydrothermal Alteration of Late- to Post-tectonic Lyon Mountain Granitic Gneiss, Adirondack Mountains, New York: Origin of Quartz-Sillimanite Segregations, Quartz-Albite Lithologies, and Associated Kiruna-type Low-Ti Fe Oxide Deposits |
Journal of Metamorphic Geology, Volume 19, p. in press |
McLelland, J.; Foose, M. P.; Morrison, J., 2001 |
Kiruna-type Low-Ti, Fe Oxide ores and Related Rocks, Adirondack Mountains, New York: High Temperature Hydrothermal Processes |
in Proterozoic iron and zinc deposits of the Adirondack Mountains of New York and New Jersey Highlands (Part 1; Guide Book 35), Edited by Slack, J. F., Guide Book Series, Society of Economic Geologists, Society of Economic Geology, Inc., v. 35/pt.1, 110 p, p. 7 - 17 |
Miller, W. J., 1919 |
Magnetite Iron Ores of Clinton County, New York |
Economic Geology, Volume 14, p. 509 - 535 |
Newland, D. H., 1920 |
Magnetic Iron Ores of Clinton County, New York |
Economic Geology, Volume 15, p. 177 - 180 |
Postel, A. W., 1952 |
Geology of the Clinton County Magnetite District, New York |
Professional Papers, United States Geological Survey, Publication code 237, 87 p., 3 maps. |
Sangster, A. L.; Gauthier, M. ; Gower, C. F., 1992 |
Metallogeny of Structural Zones, Grenville Province, Northeastern North America |
Precambrian Research, Volume 58, p. 401 - 426 |
Wasteneys, H.; McLelland, J.; Lumbers, S., 1999 |
Precise Zircon Geochronology in the Adirondack Lowlands and Implications for Revising Plate Tectonic Models of the Central Metasedimentary Belt and Adirondack Mountains, Grenville Province, Ontario and New York |
Canadian Journal of Earth Sciences, Volume 36, p. 967 - 984 |
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Production data: |
Report period: from 1870 until 1975; 20 million long tons ore; Provisional entry?: no; Yearly or summary?: SGrade-commodity information: | Fe: 26 percent | Reference: McLelland, J. M; Slack, J. F.; deLorraine, W. F., 2001: Field Trip Day Two: Road Log for Lyon Mountain Iron Mine and Northwest Adirondack Mountains Geology; in Proterozoic iron and zinc deposits of the Adirondack Mountains of New York and New Jersey Highlands (Part 1; Guide Book 35), Edited by Slack, J. F., Guide Book Series, Society of Economic Geologists, Society of Economic Geology, Inc., v. 35/pt.1, 110 p, p. 19 - 22 Percent weights allocated to deposit: 75.0% |
Associated group(s): |
Lyon Mountain ore belt (9) |