Johnson, J.M. and Brearley, A.J., 2022, Zoning textures in garnets from two New Mexico skarn deposits: Implications for complex fluid-rock interactions during skarn development: Denver, Colorado, Geological Society of America Annual Meeting, abstract 383549. Oral Presentation.

Johnson, J.M. and Brearley, A.J., 2022, Variable Garnet Compositions in the Allende CV3 Chondrite: Further evidence for complex alteration on the CV3 parent body: Glasgow, U.K., Meteoritical Society Annual Meeting, abstract 6383. Oral Presentation. 

Brearley, A.J., Johnson, J.M., Ash, R.D., and Sutton, S.R., 2020, Complex evolution of a lithic inclusion from the Northwest Africa 2364 CV3OxA chondrite: further insights from LA-ICP-MS trace element analysis and Cr, Ti, and V valence state measurements by XANES: Houston, Texas, Lunar and Planetary Science Institute, Lunar and Planetary Science Conference, abstract 1892.   

Johnson, J.M. and Brearley, A.J., 2019, Complex behavior of fluid-mobile elements in a lithic inclusion from the Northwest Africa NWA 2364 CV3OxA Chondrite: evidence for extensive fluid-rock interaction and metasomatism on the CV3 chondrite parent body: Houston, Texas, Lunar and Planetary Science Institute, Lunar and Planetary Science conference L, abstract 1926.

Johnson, J.M. and Brearley, A.J., 2018, Porous, Ca-Rich aggregates and complex minor element data of chondrule phenocrysts in the NWA 2364 CV3OxA chondrite and its lithic inclusion: Evidence of fluid-rock interactions: Houston, Texas, Lunar and Planetary Science Institute, Lunar and Planetary Science conference XL IX, abstract 2674.

Johnson, J.M., Ziegler, K., and Brearley, A.J., 2017, The intriguing interaction between the Northwest Africa NWA 2364 CV3OxA chondrite and its lithic inclusion: Implications for post emplacement parent body aqueous alteration: Santa Fe, New Mexico, Meteoritical Society Annual Meeting, abstract 6279.

Johnson, J.M. and Brearley, A.J., 2017, Alteration history of a large lithic inclusion in the Northwest Africa NWA 2364 CV3OxA chondrite: evidence for hydration followed by fluid-assisted thermal metamorphism: Houston, Texas, Lunar and Planetary Science Institute, Lunar and Planetary Science XLVIII, abstract 2459.

Johnson, J.M., and Larsen, K.M., 2017, BY Draconis stars: the search continues: AAVSO annual meeting, Ontario, CA. 

Johnson, J.M., Zolensky, M., Chan, Q., and Kring, D., 2016, Intriguing dehydrated phyllosilicates found in an unusual clast in the LL3.15 chondrite North West Africa 6925: Houston, Texas, Lunar and Planetary Science Institute, Lunar and Planetary Science XL VII, abstract 1608.

Johnson, J.M, Zolensky, M., Chan, Q., and Kring, D., 2015, Striking Graphite Bearing Clasts found in Two Ordinary Chondrite Samples; NWA6169 and NWA8330: Geological Society of America National Meeting: Abstracts with Programs, abstract # 210-51. Poster Presentation.

Johnson, J.M., Zolensky, M., Chan, Q., and Kring, D., 2015, A Mineralogic and Petrographic Investigation of Unique Foreign Clasts in 3 Ordinary Chondrite Samples: Lunar and Planetary Institute Summer Intern Conference Abstracts and Presentations: Abstract will be available on Lunar and Planetary Institute website. Oral presentation.

Luna, M., Johnson, J.M., Larsen, K.M., and Oyewumi, O., 2015, Assessing Student Understanding in an Environmental Geoscience Class: Geological Society of America Northeast Regional Sectional Meeting; Abstracts with Programs 47(3): 88. Poster presentation.

Johnson, J.M., and Piatek, J., 2015, A Virtual Field Experience on Mars via Earth Analog Outcrops and GigaPixel Imagery: Geological Society of America Northeast Regional Sectional Meeting: Abstracts with Programs 47(3): 48. Oral presentation.

Johnson, J.M., and Piatek, J., 2014, The GigaPan Guide to Mars: Using a Virtual Field Trip to Compare Earth and Mars: Geological Society of America Northeast Regional Sectional Meeting: Abstracts with Programs 46(2): 6. Poster Presentation.

Johnson, J.M., and Larsen, K.M., 2015, The Quest for Identifying BY Draconis Stars within a Data Set of 3,548 Candidate Cepheid Variable Stars; Journal of American Association of Variable Star Observers Annual Fall Meeting 44. Oral presentation.

Johnson, J.M., and Larsen, K.M., 2014, Discovery of Five Previously Misidentified BY Draconis Stars in ASAS Data: Journal of the American Association of Variable Star Observers Annual Fall Meeting 43(1). Poster Presentation.

Larsen, K.M., and Johnson, J.M., 2014, Identification of BY Draconis Variable Stars in ASAS Data: American Astronomical Society, AAS Meeting #223, #156.04. Poster Presentation.

Johnson, J.M., and Larsen, K.M., 2013, Identification of BY Draconis Stars Among ASAS Cepheid Candidates: Journal of the American Association of Variable Star Observers Annual Fall Meeting 42(1). Poster Presentation.