5
porphyry Cu deposits). The Laramide and mid-Tertiary
deposits have different geochemical characteristics. New
geochemistry indicates elevated critical minerals in some
deposits, especially In, Re, Bi, Co, Ni, V, Cs, and REE in
skarns.
ACKNOWLEDGMENTS
This work is part of the ongoing research on the eco-
nomic geology of New Mexico at the New Mexico Bureau
of Geology and Mineral Resources (NMBGMR), Dr.
Mike Timmons, Director and State Geologist. Current
research is funded through contracts with USGS Earth
MRI Cooperative Agreement No. G23AC00054-00
(subcontract with Arizona Geological Survey) and
G24AC00322 and student grant from the New Mexico
Geological Society. Assistance from Dr. Matt Heizler, Dr.
Julia Ricci, and the rest of the New Mexico Geochronology
Research Laboratory (NMGRL) is appreciated. Thanks to
Mark Leo-Russell for database support, and students of
the NMBGMR Economic Group for sample collecting
and preparation (especially Abena Serwah Acheampong-
Mensah, Zohreh Motlagh Kazemi, Harriett Tetteh, and
Brielle Hunt). The views and opinions of authors expressed
therein do not necessarily state or reflect those of the United
States Government or any agency thereof.
Figure 3. REE in Laramide porphyry Cu deposits (analyses by Granitto et al., 2020 and
NMBGMR unpublished data)
Figure 4. Te and Bi in porphyry Cu deposits in New Mexico (analyses by Granitto et al., 2020
and NMBGMR unpublished data). Note Ground Hog mine (Central district) has 64 ppm Te.
Legend is in Figure 3
porphyry Cu deposits). The Laramide and mid-Tertiary
deposits have different geochemical characteristics. New
geochemistry indicates elevated critical minerals in some
deposits, especially In, Re, Bi, Co, Ni, V, Cs, and REE in
skarns.
ACKNOWLEDGMENTS
This work is part of the ongoing research on the eco-
nomic geology of New Mexico at the New Mexico Bureau
of Geology and Mineral Resources (NMBGMR), Dr.
Mike Timmons, Director and State Geologist. Current
research is funded through contracts with USGS Earth
MRI Cooperative Agreement No. G23AC00054-00
(subcontract with Arizona Geological Survey) and
G24AC00322 and student grant from the New Mexico
Geological Society. Assistance from Dr. Matt Heizler, Dr.
Julia Ricci, and the rest of the New Mexico Geochronology
Research Laboratory (NMGRL) is appreciated. Thanks to
Mark Leo-Russell for database support, and students of
the NMBGMR Economic Group for sample collecting
and preparation (especially Abena Serwah Acheampong-
Mensah, Zohreh Motlagh Kazemi, Harriett Tetteh, and
Brielle Hunt). The views and opinions of authors expressed
therein do not necessarily state or reflect those of the United
States Government or any agency thereof.
Figure 3. REE in Laramide porphyry Cu deposits (analyses by Granitto et al., 2020 and
NMBGMR unpublished data)
Figure 4. Te and Bi in porphyry Cu deposits in New Mexico (analyses by Granitto et al., 2020
and NMBGMR unpublished data). Note Ground Hog mine (Central district) has 64 ppm Te.
Legend is in Figure 3