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The Philippines can raise its voice loudly in the international stage against global warming- Garrity

The discussion during the 13th SESAM ExChanges last April 16, 2024 circled around landscapes, people and planet, featuring Dr. Dennis Garrity,...
18 April 2024

Empowering Indigenous Agriculture with Smarter Technologies: Project SARAi and Project STC4iD Training Initiatives in Oriental Mindoro

Agricultural stakeholders gather for a two-day event to enhance farming practices and agricultural sustainability in the province. In a bid...
16 April 2024
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About

JM is a geologist with research interests in igneous and metamorphic petrology, mineralogy, geochemistry, tectonics, microanalysis applications in geoscience, and carbonation of ultramafic rocks for CO2 storage. His former research involvements include mantle petrological works, multi-stage metasomatism and metamorphism of ultramafic rocks, high-pressure metamorphism, mineral-water interaction, deep-ocean drilling, drilling the crust-mantle transition (Oman Drilling Project), and geochemistry of volcanic rocks.

Academic History

BSc in Geology, Adamson University2012

MSc in Geology, University of the Philippines Diliman, 2017

PhD in Geology, Kanazawa University, Japan, 2020

Research Interest

  • Igneous and Metamorphic Petrology
  • Geochemistry
  • Mineralogy

Publications

Tilhac, R., Morishita, T., Hanaue, N., Tamura, A., Guotana, J.M., 2021. Systematic LREE enrichment of mantle harzburgites: The petrogenesis of San Carlos xenoliths revisited. Lithos 396–397, 106195. https://doi.org/10.1016/j.lithos.2021.106195

 

Liu, H.Q., Yumul, G.P., Dimalanta, C.B., Queaño, K., Xia, X.P., Peng, T.P., Lan, J.B., Xu, Y.G., Yan, Y., Guotana, J.M.R., Olfindo, V.S., 2020. Western Northern Luzon Isotopic Evidence of Transition From Proto-South China Sea to South China Sea Fossil Ridge Subduction. Tectonics 39. https://doi.org/10.1029/2019TC005639

Yumul, G.P., Dimalanta, C.B., Salapare, R.C., Queaño, K.L., Faustino-Eslava, D. V., Marquez, E.J., Ramos, N.T., Payot, B.D., Guotana, J.M.R., Gabo-Ratio, J.A.S., Armada, L.T., Padrones, J.T., Ishida, K., Suzuki, S., 2020. Slab rollback and microcontinent subduction in the evolution of the Zambales Ophiolite Complex (Philippines): A review. Geosci. Front. 11, 23–36. https://doi.org/10.1016/j.gsf.2018.12.008

Nishio, I., Morishita, T., Szilas, K., Pearson, G., Tani, K.-I., Tamura, A., Harigane, Y., Guotana, J. M. (2019). Titanian Clinohumite-Bearing Peridotite from the Ulamertoq Ultramafic Body in the 3.0 Ga Akia Terrane of Southern West Greenland. Geosciences 2019, Vol. 9, Page 153, 9(4), 153. https://doi.org/10.3390/GEOSCIENCES9040153

 

Morishita, T., Machi, S., Guotana, J. M., & Tamura, A. (2019). Biotite phenocryst-rich high-K basaltic boulder from upper stream of the Kuzuryu River in Katsuyama City, Fukui Prefecture福井県勝山市九頭竜川上流地域の黒雲母斑晶に富む高カリウム玄武岩質転石. The Journal of the Geological Society of Japan, 124(11), 941–946. https://doi.org/10.5575/geosoc.2018.0031

 

Guotana, J. M., Morishita, T., Yamaguchi, R., Nishio, I., Tamura, A., Tani, K., … Pearson, D. (2018). Contrasting Textural and Chemical Signatures of Chromitites in the Mesoarchaean Ulamertoq Peridotite Body, Southern West Greenland. Geosciences, 8(9), 328. https://doi.org/10.3390/geosciences8090328

 

Guotana, J. M. R., Payot, B. D., Dimalanta, C. B., Ramos, N. T., Faustino-Eslava, D. V., Queaño, K. L., & Yumul, G. P. (2018). Petrological and geochemical characteristics of the Samar Ophiolite ultramafic section: implications on the origins of the ophiolites in Samar and Leyte islands, Philippines. International Geology Review, 60(4), 401–417. https://doi.org/10.1080/00206814.2017.1336944

 

Morishita, T., Yoshikawa, M., Tamura, A., Guotana, J., & Ghosh, B. (2018). Petrology of Peridotites and Nd-Sr Isotopic Composition of Their Clinopyroxenes from the Middle Andaman Ophiolite, India. Minerals, 8(9), 410. https://doi.org/10.3390/min8090410

 

Yumul, G.P.Jr., Brown, W.W., Dimalanta, C.B., Ausa, C.A., Faustino-Eslava, D.V., Payot, B.D., Ramos, N.T., Lizada, A.N.L., Buena, A.E., Villaplaza, B.R.B., Manalo, P.C., Queaño, K.L.,

Guotana, J.M.R. and Pacle, N.A.D. 2016.  Adakitic rocks in the Masara gold-silver mine, Compostela Valley, Mindanao, Philippines: Different places, varying mechanisms? Journal of Asian Earth Sciences Special Issue. http://dx.doi.org/10.1016/j.jseaes.2016.06.005.

 

Guotana, J. M. R., Yumul, G. P., Dimalanta, C. B., Queaño, K. L., Payot, B. D., Ramos, N. T., & Faustino-Eslava, D. V. (2016). Arc and backarc geochemical signatures of the proto-Philippine Sea Plate: Insights from the petrography and geochemistry of the Samar Ophiolite volcanic section. Journal of Asian Earth Sciences, 142, 77–92. https://doi.org/10.1016/j.jseaes.2016.07.031

 

Balmater, H.B., Manalo, P.C., Faustino-Eslava, D.V., Queaño, K.L., Dimalanta, C.B., Guotana, J.M.R., Ramos, N.T., Payot, B.D. and Yumul, G.P.Jr. 2015.  Paleomagnetism of Samar Ophiolite: Implications for the Cretaceous sub-equatorial position of the Philippine island arc.  Tectonophysics 664, 214-224. Doi:10.1016/j.tecto.2015.09.024.

 

Yumul, G.P. Jr,, Dimalanta, C.B., Queaño, K.L., Faustino-Eslava, D.V., Marquez, E.J., Ramos, N.T., Ishida, K., Suzuki, S., Salapare, R.C., Sanchez, M.P., Guotana, J.M., Concepcion, R.A. 2012. A tale of two blocks: New insights on the evolution of the Zambales Ophiolite Complex, Luzon Island, Philippines. Interidge News, 27-30.