postdoctoral advisee,   * student advisee

Zhao, M.†, Blake, R.E., Liang, Y.*, Dogru, D.*, Jaisi, D.P. †, Chang, S.J. † and Planavsky, N.J. (2021) Oxygen Isotopic Fingerprints On The Phosphorus Cycle Within the Deep Biosphere. Geochimica et Cosmochimica Acta, .310: 169-186.
Ji, H., Chang, C., Beckford, H.O., Song, C. and Blake, R.E. (2021) New perspectives on lateritic weathering process over karst area – Geochemistry and Si-Li isotopic evidence. Catena, 198: 105022. 
Chang, S.J.†, Blake, R.E. and Colman, A.S.* (2021) Biogeochemical cycling of phosphate: Insights from oxygen isotope exchange rate between phosphate and water catalyzed by inorganic pyrophosphatase. Earth and Planetary Sci. Lett., 570: 117071.
Zhang, Y*., Wang, F†., Hudson-Edwards, K.A., Blake, R.E., Zhao, F., Yuan, Z., and Gao, W., (2020) Characterization of Mining-related Aromatic Contaminants in Active and Abandoned Metal(loid) Tailings Ponds. Environmental Science and Technology, 54(23), 15097-15107, DOI: 10.1021/acs.est.0c03368
Lei, X-T*., Zhang, H*., Chen, M*., Guo, L., Zhang, X-G., Jiang, Z-H., Blake, R.E. and Chen, Z-G., (2020) The efficiency of sequential extraction of phosphorus in soil and sediment: insights from the oxygen isotope ratio of phosphate. Journal of Soils and Sediments, 20:1332––1343
Xia, C.*, Wang, F. , Zhang, Y., Tang, X., Blake, R.E., Li, H.*, Chang, S.J. † and Yu, C.†, (2019) Mechanism of methylphosphonic acid photo-degradation: Based on phosphate oxygen isotopes and density function theory. Royal Society Advances, 9: 31325-31332. DOI:10.1039/c9ra05169d.
Wang, F†., Yu, C. , Li, H*., Chang, S.J.†, and Blake, R.E. (2019) Effect of microbial growth rate on temperature and metabolic water recorded in 18O/16O ratios of PO4 in DNA. Chemical Geology.533:
Yu, C†., Li, H*., Wang, F†., Chang, S.J. †, Yao, J. and Blake, R.E. (2018) Phosphate oxygen isotope evidence for methylphosphonate sources of methane and dissolved inorganic phosphate. Science of the Total Environment, 644: 747-753. doi: 10.1016/j.scitotenv.2018.06.382. Epub 2018 Jul 11.
Zhao-Hua Jiang1, Han Zhang3, Deb P. Jaisi†, Ruth E. Blake, Ai-Rong Zheng1, Min Che1, An-Guo Peng, Xi-Guang Zhang, Chang-Shi Qi, Xue-Tie Lei, Kai-Qiang Kang, Zhi-Gang Chen (2017). The effect of sample treatment on the oxygen isotopic composition of phosphate pools in soils. Chemical Geology, 474: 9-16.
Blake, R.E., Surkov, A.V. †, Stout, L.M. †, Li, H.*, Chang, S.J. †, Jaisi, D.P. †, Colman, A.S. *, and Liang, Y.* (2016) DNA Thermometry: New Information from “the Information Molecule” and a Universal Biothermometer in the PO4 Backbone of DNA. Am. J. of Science, 316:9, 813-838.
Chang, S.J. and Blake, R.E. (2015) Oxygen isotope studies of phosphite (PO3) oxidation: Purification and analysis of reactants and products by high-temperature conversion elemental analyzer/isotope ratio mass spectrometry. Rapid Communication in Mass Spectrometry, 29: 21, 2039—2044.
Cormier, M.H., Blake, R., Coleman, D., Guerrier, K., Saintilus, N., Wagner, J. and Auscavitch, S. (2015) Exploration of the Windward Passage and Jamaica Channel: Tectonic Gateways to the Caribbean Sea, Oceanography, 27:1, p. 38-39.
Steven Carey, Katherine L.C. Bell, Robert D. Ballard, Christopher Roman, Frederic Dondin, Patricia Miloslavich, Judith Gobin, Brad Seibel, Richard Bell, Clara Smart, Sarah A. Fuller, Nam Siu, Patrick Connally, Ruth Blake, Karen Wishner, and Brennan T. Phillips (2014) Fluid/Gas Venting and Biological Communities at Kick’em Jenny Submarine Volcano, Grenada (West Indies) Oceanography Journal.
Yu, C. †, Yao, J., Cai, M., Wang, F., Masakorala, K., Liu, H., Blake, R.E., Doni, S., Brunello Ceccanti, B., (2013) Functional gene expression of oil-degrading bacteria resistant to hexadecane toxicity. Chemosphere, 93, 1424-1429.
Sandy, E.H†., Blake, R.E., Chang, S.J., Yao, J., Yub C (2013) Oxygen isotope signature of UV degradation of glyphosate and phosphonoacetate: Tracing sources and cycling of phosphonates. J. Hazard. Mat. 260: 947– 954
Larese-Casanova, P†. and Blake, R.E. (2013) Measurements of d18O values in arsenic and selenium oxyanions. Rapid Communications in Mass Spectrometry, 27, 117-126.
Guo, H., Yao, J., Chen, H., Wang, J., Masakorala, K., Jin, Y., Richnow, H.H. and Blake, R.E., (2012) Substrate interactions during biodegradation of benzene/alkylbenzene mixtures by Rhodococcus sp. ustb-1. International Biodeterioration & Biodegradation, 75, 124-130.
Qian,Y., Yao, J., Cai, M. Qian, Y. Guo, Y., Richnow, H.H., Blake, R.E., Doni, S. and Ceccanti, B. (2012) Effects of petroleum contamination on soil microbial numbers, metabolic activity and urease activity. Chemosphere, 87, 1273-80.
Wang, J., Wang, F., Yao, J., Guo, H., Blake, R.E., Choi, M.M.F., and Song, C. (2012) Effect of pH and Temperature on Adsorption of Dimethyl Phthalate on Carbon Nanotubes in Aqueous Phase. Analytical Letters, 46, 379 – 393.

Guo, H.,  Yao,  J., Cai, M.,   Qian, Y.,  Guo, Y.,  Richnow, H.H. , Blake, R.E.,   Doni, S., and Ceccanti, B.  (2011—submitted) Investigation of the microbial activity in long-term petroleum contaminated soils by a combination of methods. Journal of Hazardous Materials

Qian,Y.  Yao, J., Chen,  K., Li, Z., Zhuang, R.,  Li,  H., Zhu, Q.,  Song, Y. , Richnow, H.H. and Blake,  R.E. (2011—submitted)  Medium-term impact of oxide nanoparticles on soil microbial community and enzyme activity by combined methods.  Science of the Total Environment.

Jaisi, D.P., Kukkadapu, R.K., Stout, L.M., Varga, T., and Blake, R.E.  (2011) Biotic and Abiotic Pathways of Phosphorus Cycling in Minerals and Sediments: Insights from Oxygen Isotope Ratios in Phosphate.  Environmental Science & Technology, 45, 6254–6261.   |

Blake, R.E., Chang, S.J., Lepland, A. (2010) Phosphate oxygen isotopic evidence for a temperate and biologically active Archaean ocean. Nature, 464, 1029-1032.

Jaisi, D.P., Blake, R.E., Kukkadapu, R. (2010) Fractionation of oxygen isotopes in phosphate during its sorption/desorption to iron oxides. Geochimica et Cosmochimica Acta, 74, 1309-1319.

Jaisi, D.P., Blake, R.E. (2010) Tracing sources and cycling of phosphorus in Peru Margin sediments using oxygen isotopes in authigenic and detrital phosphates. Geochimica et Cosmochima Acta, 74, 3199-3212. DOI: 10.1016/j.gca.2010.02.030.

Chang, S. J., Blake, R. E., Stout, L. M. and Kim, S. J. (2010) Oxygen isotope, micro-textural and molecular evidence for the role of microorganisms in formation of hydroxylapatite in limestone caves, South Korea. Chemical Geology, v. 276: 209-224.

Liang, Y*. and Blake, R.E. (2009) Compound- and Enzyme-specific Phosphate Hydrolysis Mechanisms Revealed by d18O of Dissolved Phosphate. Geochim. Cosmochim. Acta, 73, 3782-3794.

Stout, L.M., Blake, R.E., Greenwood, J.P., Martini, A.M. and Rose, E.C.*(2009). Microbial diversity of boron-rich volcanic hot springs of St. Lucia, Lesser Antilles FEMS Microbiology Ecology 70, 402-412.

Jaisi, D.P.,  Saleh, N.B., Blake, R.E. and Elimelech, M. (2008) Transport of Single-Walled Carbon Nanotubes in Porous Media: Filtration Mechanisms and Reversibility. Environmental Science and Technology, 42: 8317-8323.

Liang, Y*., and Blake, R.E. (2007) Oxygen isotope fractionation between apatite and dissolved aqueous phosphate:  20-45 °C.  Chemical Geology, v. 238:  121-133.

Greenwood, J.P. and Blake, R.E. (2006) Evidence for an acidic ocean on Mars from phosphorus geochemistry of Martian soils and rocks. Geology, 34: 953-956. 

Liang, Y*. and Blake, R.E. (2006b) Oxygen isotope signature of Pi regeneration from organic compounds by phosphomonoesterases and photooxidation. Geochimica et Cosmochimica Acta, 70, 3957-3969. 

Liang, Y*., and Blake, R.E. (2006a) Oxygen isotope composition of phosphate in organic compounds: Isotope effects of extraction methods.  Organic Geochemistry, 37, 1263-1277.

Blake, R.E., Surkov, A.V., Böttcher, M.E., Ferdelman, T.G., and Jørgensen, B.B. (2006) Oxygen isotope composition of dissolved sulfate in deep-sea sediments:  Eastern Equatorial Pacific Ocean. In Jørgensen, B.B., D’Hondt, S.L., Miller, D.J. (Eds.) Proceedings of the Ocean Drilling Program, Scientific Results, 201: College Station, TX (Ocean Drilling Program), p. 1-24. 

Böttcher, M.E., Ferdelman, T.G., Jørgensen, B.B., Blake, R.E., Surkov, A.V and Claypool, G.E. (2006) Sulfur isotope fractionation by the deep biosphere within sediments of the  Eastern Equatorial Pacific and Peru Margin sediments. In Jørgensen, B.B., D’Hondt, S.L., Miller, D.J. (Eds.) Proceedings of the Ocean Drilling Program, Scientific Results, 201: College Station, TX (Ocean Drilling Program), p. 365–373.

Wheeler, J.C., Szostak, J.W., Benner, S.A., Berry, J.A., Blake, R.E., Calvin, W.M., Daly, M.J., Freeman, K.H., Gogarten, J.P., Kasting, J.F., Keefe, A., Keller, M., Pizzarello, A., Siefert, J.L., Summons, R., Woolf, N.J. and Ziurys, L.M. (2005) The Astrophysical Context of Life, Committee on the Origin and Evolution of Life, National Research Council, The National Academies Press, Washington, D.C., 94p.

Blake, R.E., O’Neil, J.R. and Surkov, A.V.  (2005) Biogeochemical cycling of phosphorus: insights from oxygen isotope effects of phosphoenzymes. American Journal of Science, v. 305:  596-620.

Colman, A.*, Blake, R.E., Karl, D.M., Fogel, M.L. and Turekian, K.K., (2005) Marine phosphate oxygen isotopes and organic matter remineralization in the oceans. Proc. of the Nat’l Academy of Sciences, v. 102:  13023-13028.

D’Hondt, S., Jørgensen, B.B., Miller, D.J., Batzke, A., Blake, R. E….. and Ocean Drilling Program Leg 201 Shipboard Scientifc Party (2004) Distribution of Microbial activities in deep subseafloor sediments.  Science, 306: 2216-2221.

Greenwood, J.P., Blake, R.E. and Coath, C.D. (2003) Ion microprobe measurements of 18O/16O ratios of phosphate minerals in the Martian meteorites ALH84001 and Los Angeles.  Geochimica  et Cosmochimica. Acta, v. 67:  2289-2298.…

Vennemann, T.W., Fricke, H.C., Blake, R.E. , O’Neil, J.R.  and Colman, A.* (2002) Oxygen isotope analysis of phosphates:  A comparison of techniques for analyses of Ag3PO4.  Chemical Geology, v.185:  321-336. 

Blake, R. E, Alt, J.C. and Martini, A.M. (2001) Oxygen isotope ratios of PO4:  an inorganic indicator of enzymatic activity and P metabolism and a new biomarker in the search for life.  Proc.  of the Nat’l Academy of Sciences, Astrobiology Special Feature, v. 98: 2148-2153.

Ku, T.C.W., Walter, L.M., Coleman, M.L., Blake, R.E. and Martini, A.M. (1999)  Coupling between sulfur recycling and syndepositional carbonate dissolution:  Evidence from oxygen and sulfur isotope composition of pore water sulfate, South Florida Platform, U.S.A.  Geochimica et Cosmochimica Acta, v. 63:  2529-2546. 

Blake, R.E. and Walter, L.M. (1999) Kinetics of feldspar and quartz dissolution at 70-80°C and near-neutral pH:  Effects of organic acids and NaCl.  Geochimica et Cosmochimica Acta, v. 63:  2043-2059.

Blake, R.E., O’Neil, J.R. and Garcia, G.A. (1998) Effects of microbial activity on the d18Op of dissolved inorganic phosphate and textural features of synthetic apatites.  American Mineralogist, v. 83:  1516-1531.

Blake, R.E., O’Neil, J.R. and Garcia, G.A. (1997) Oxygen isotope systematics of microbially mediated reactions of phosphate I.:  Microbial degradation of organophosphorus compounds.  Geochimica et Cosmochimica Acta, v. 61:  4411-4422.