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Dr. Lackey

Jade Star Lackey, Associate Professor


B.A. in Geology, Middlebury College
M.S. in Geology, University of Wisconsin – Madison
Ph.D. in Geology, University of Wisconsin – Madison


Specialist in: Igneous and Metamorphic Petrology, Stable Isotope Geochemistry, Fluid Flow in the Crust

Research Page Link

Office: Edmunds Building 239
Voice: (909) 621-8677

Biographical Information

Jade Star Lackey offers courses in mineralogy, igneous & metamorphic petrology, geochemistry, and introductory geology. His research incorporates a breadth of petrologic and geochemical tools to investigate igneous and metamorphic rocks and relate their petrogenesis to the growth and evolution of continental crust. Jade Star has several active research projects nearby in the Sierra Nevada and California, but also conducts research on granites in Maine and Nova Scotia.  Current research interests include: (1) Deciphering the magma system evolution in convergent margin batholiths; (2) monitoring fluid fluxes from such batholiths by isotopic studies of skarn deposits; (3) applying oxygen isotope analysis of garnet and zircon to parse apart contamination events in peraluminous magmas; (4) evaluating the connections between volcanic and plutonic magma systems in convergent margin batholiths; (5) applying stable isotope (O/D-H) analyses of hydrothermal cements to study the tempo and mode of shallow geothermal system evolution in Long Valley caldera.

Courses Taught

Geology 020: Geohazards
Geology 120: Introduction to Geochemistry
Geology 127: Minerology
Geology 181: Igneous and Metamorphic Petrology


Lee, C.T.A., and Lackey, J.S.,2015, Global continental arc flare-ups and their relation to long-term greenhouse conditions: Elements v. 11, n. 2, 125–130.

Lackey, J.S., Sendek, C.L., and Eisenberg, J.L., 2014, Day 2: The Fine Gold Intrusive Suite—Records of the nascent Cretaceous arc, in Memeti, V., Paterson, S.R., and Putirka, K.D., eds., Formation of the Sierra Nevada Batholith: Magmatic and Tectonic Processes and Their Tempos: Geological Society of America Field Guide 34, p. 17–32.

Klemetti, E.W., Starnes, J.S., Lackey, J.S., 2014, Magmatic lulls in the Sierra Nevada captured in zircon from rhyolite of the Mineral King pendant, California: Geosphere v. 10, n. 1, p. 66–79.

Peck, W.H., Selleck, B.W., Wong, M.S., Chiarenzelli, J.R., Harpp, K.S., Hollocher, K., Lackey, J.S.,Catalano, J., Regan, S.P., Stocker, A., and, Orogenic to post-orogenic (1.2–1.15 Ga) magmatism in the Adirondack lowlands and Frontenac Terrane, Grenville Province: Geosphere v. 9, p. 1637–1663.

Holland, J., Smith, D., Surpless, B., Loewy, S.L., and Lackey, J.S., Intrusive History and Petrogenesis of the Ash Mountain Complex, Sierra Nevada, California (USA): Geosphere, v. 9, p. 691–717.

Lee, C.-T.A., Shen, B., Slotnick, B.S., Liao, K., Dickens, G.R., Yokoyama, Y., Lenardic, A., Dasgupta, R., Jellinek, M., Lackey, J.S., Schneider, T., and Tice, M.M., 2013, Continent-island arc fluctuations, growth of crustal carbonates, and long-term climate change: Geosphere, v. 9, p. 21-36.

D’Errico, M.E.*, Lackey, J.S., Surpless, B.E., Loewy, S.L., Wooden, J.L., Barnes, J.D., Strickland, A., and Valley, J.W., 2012, A detailed record of shallow hydrothermal fluid flow in the Sierra Nevada magmatic arc from low-δ18O skarn garnets: Geology, [Free Download] v. 40, n. 8, p. 763–766.

Lackey, J.S., Cecil, M.R., Windham, C.J.*(PO’11), Frazer, R.E.*(PO’09), Bindeman, I.N., Gehrels, G.E., 2012, The Fine Gold Intrusive Suite: The roles of basement terranes and magma source development in the Early Cretaceous Sierra Nevada batholith: Geosphere, v. 8, p. 292–313.

Lackey, J.S., Romero, G.A.*(PO’12), Bouvier, A.S., and Valley, J.W., 2012, Dynamic Growth of Garnet in Granitic Magmas: Geology,[Free Download] v. 40, n. 2, p. 171–174.

Lackey, J.S., Erdmann, S., Hark, J.S.*, Nowak, R.N.*, Murray, K.E.*, Clarke, D.B., and Valley, J.W., 2011, Tracing garnet origins in granitoids by oxygen isotope analysis: Examples from the South Mountain Batholith, Nova Scotia: The Canadian Mineralogist, v. 49, p. 417-439.

Lackey, J.S., Valley, J.W., Chen, J.H., Stockli, D., 2008, Dynamic magma systems, crustal recycling, and alteration in the central Sierra Nevada batholith: the oxygen isotope record: Journal of Petrology, v. 49, p. 1397–1426.

Fu, B., Page, F.Z., Cavosie, A.J., Clechenko, C.C., Fournelle, J.F., Kita, N.T., Lackey, J.S., Wilde, S.A., Valley, J.W., 2008, Ti-in-zircon thermometry: applications and limitations: Contributions to Mineralogy and Petrology, v. 156, 197–215.

Lackey, J.S., Valley, J.W., and Hinke, H.J.*, 2006, Deciphering the source and contamination history of peraluminous magmas using δ18O of accessory minerals: examples from garnet-bearing plutons of the Sierra Nevada batholith: Contributions to Mineralogy and Petrology, v. 151, p. 20–44.

Valley, J.W., Lackey, J.S., Cavosie, A.J., Clechenko, C., Spicuzza, M.J., Basei, M.A.S., Bindeman, I.N., Ferreira, V.P., Sial, A.N., King, E.M., Peck, W.H., Sinha, A.K., Wei, C.S., 2005, 4.4 billion years of crustal maturation from oxygen isotope ratios of zircon, Contributions to Mineralogy and Petrology, v. 150, p. 561–580.

Lackey, J.S., Valley, J.W., and Saleeby, J.B., 2005, Evidence from zircon for high-δ18O contamination of magmas in the deep Sierra Nevada batholith, California: Earth and Planetary Science Letters, v. 235, p. 315–330.

Lackey, J.S., and Valley, J.W., 2004, Complex Patterns of Fluid Flow during Wollastonite Formation in Calcareous Sandstones at Laurel Mountain, Mt. Morrison Pendant, California: GSA Bulletin, v. 116, p. 76–93.

* Student Author


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