Suttle, M.D. and Genge, M.J., 2017. Diagenetically altered fossil micrometeorites suggest cosmic dust is common the geological record. Earth and Planetary Science Letters, 476, pp.132-142. https://www.sciencedirect.com/science/article/pii/S0012821X17304399
"We report the discovery of fossil micrometeorites from Late Cretaceous chalk." (Seaford Chalk Formation, United Kingdom) "However, this study demonstrates that fossil, pseudomorphic micrometeorites can be recognized and are likely common within the geological record." It also appears that micrometeorites and cosmic spherules of various ages are common in Antarctic surficial and glacial deposits. Genge, M.J., Davies, B., Suttle, M.D., van Ginneken, M. and Tomkins, A.G., 2017. The mineralogy and petrology of I-type cosmic spherules: Implications for their sources, origins and identification in sedimentary rocks. Geochimica et Cosmochimica Acta, 218, pp. 167-200. https://www.sciencedirect.com/science/article/pii/S0016703717305495 Van Ginneken, M., Genge, M.J., Folco, L. and Harvey, R.P., 2016. The weathering of micrometeorites from the Transantarctic Mountains. Geochimica et Cosmochimica Acta, 179, pp. 1-31. https://www.sciencedirect.com/science/article/pii/S0016703716300011 https://spiral.imperial.ac.uk/bitstream/10044/1/29482/9/1-s2.0-S0016703716300011-main.pdf https://www.researchgate.net/publication/293017461_The_weathering_of_micrometeorites_from_the_Transantarctic_Mountains https://www.researchgate.net/profile/Matthias_Van_Ginneken2 Although off-topic, the below is an interesting paper that is currently open access. T. C. Chamberlin, "Studies for Students: The Method of Multiple Working Hypotheses," The Journal of Geology 5, no. 8 (Nov. - Dec., 1897): 837-848. https://www.journals.uchicago.edu/doi/abs/10.1086/607980 Yours, Paul H.
______________________________________________ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
