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taxonomical challenges, which will be REFERENCES CITED and tectonic setting, in Tucker, R.D., and
understood, not by text-mining alone, Chayes, F., 1956, Petrographic Modal Analysis— Marvinney, R.G., eds., Studies in Maine
but by publishing accurate, precise, and An Elementary Statistical Appraisal: New York, Geology—Igneous and Metamorphic
Geology: Maine Geological Survey Depart-
John Wiley and Sons Inc., 139 p.
reproducible biological findings (Gough, DePriest, P.T., 2004, Early molecular investiga- ment of Conservation, v. 4, p. 1–33.
2017). The contributors to the IUGS tions of lichen-forming symbionts: 1986–2001: Le Maitre, R.W., Streckeisen, A., Zanettin, B.,
classification scheme, recognizing that Annual Review of Microbiology, v. 58, LeBas, M.J., Bonin, B., and Bateman, P.,
many rock suites are continuums, p. 273–301, https://doi.org/10.1146/annurev editors, 2002, Igneous Rocks: A Classification
.micro.58.030603.123730.
devoted considerable thought in choos- Easton, R.M., Edwards, L.A., Orndorff, R.C., and and Glossary of Terms: Cambridge, Cambridge
University Press, https://doi.org/10.1017/
ing the boundaries, knowing that this Ferrusquia-Villafranca, I., 2016, North American CBO9780511535581.
property of rocks does not invalidate Commission on Stratigraphic Nomenclature Streckeisen, A., 1976, To each plutonic rock its
the general usefulness of the proposed Report 12: Stratigraphy, v. 13, no. 3, p. 220–222. proper name: Earth-Science Reviews, v. 12,
classification scheme (see Streckeisen, Elliott, B.A., 1999, Colour masks in digital image p. 1–33, https://doi.org/10.1016/0012-8252
(76)90052-0.
1976). The petrological community analysis: A technique for modal analyses of Willis, K.V., Srogi, L., Lutz, T., Monson, F.C.,
needs to increase the opportunity to quartz saturated plutonic rocks: Bulletin of the and Pollock, M., 2017, Phase Composition
Geological Society of Finland, v. 71, no. 2,
explore petrological trends in the varia- p. 233–241, https://doi.org/10.17741/bgsf/ Maps integrate mineral compositions with
tion of mineral assemblages that define 71.2.002. rock textures from micrometer to the thin
igneous rock suites using AI and con- Glazner, A.F., Bartley, J.M., and Coleman, D.S., section scale: Computers & Geosciences,
2019, A more informative way to name
tinue to debate possible origins for these plutonic rocks: GSA Today, v. 29, p. 4–10, v. 109, p. 162–177, https://doi.org/10.1016/
j.cageo.2017.08.009.
trends. To do so, I recommend petrolo- https://doi.org/10.1130/GSATG384A.1. Wones, D.R., 1980, Contributions of crystallog-
gists continuing to use the IUGS classifi- Gough, N.R., 2017, Challenges in Classifying raphy, mineralogy, and petrology to the
cation scheme and focusing their energy Biology: BioSerendipity, https://www.bio geology of the Lucerne Pluton, Hancock
on seeking publication of accurate and serendipity.com/challenges-in-classifying- County, Maine: The American Mineralogist,
biology/ (accessed 21 Mar. 2019).
reproducible modal analysis data in Hogan, J.P., and Sinha, A.K., 1989, Composi- v. 65, p. 411–437.
consistent formats (i.e., similar to geo- tional variation of plutonism in the Coastal Manuscript received 4 Mar. 2019
chemical data) suitable for data mining. Maine Magmatic Province: Mode of origin Manuscript accepted 11 Mar. 2019
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