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The frequent impacts of meteorites and asteroids on Hadean Earth have been considered one of the abiotic synthetic processes of organic compounds. However, the impact-induced formation of FA from CO\n                    <jats:sub>2<\/jats:sub>\n                    as the major atmospheric constituent has not been confirmed yet. This study investigated the formation of FA in impact-induced reactions among meteoritic minerals, bicarbonate, gaseous nitrogen, and water to simulate the abiotic process experimentally. Products were analyzed with ultra-high-performance liquid chromatography\/tandem mass spectrometry and powder X-ray diffraction techniques. The results show the formation of FA and oxidation of metallic iron to siderite in the impact shock experiments. This indicates that this important prebiotic molecule was also synthesized by impacts of iron-bearing meteorites\/asteroids on the Hadean oceans. The impact events might have generated spatially and temporally FA-enriched localized environments. Moreover, the impact-induced synthesis of FA may have also occurred on Noachian Mars given the presence of liquid water and a CO\n                    <jats:sub>2<\/jats:sub>\n                    -N\n                    <jats:sub>2<\/jats:sub>\n                    -rich atmosphere on the planet.\n                  <\/jats:p>","DOI":"10.1089\/ast.2020.2320","type":"journal-article","created":{"date-parts":[[2021,3,30]],"date-time":"2021-03-30T16:49:05Z","timestamp":1617122945000},"page":"413-420","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":11,"title":["Experimental Investigation of the Formation of Formaldehyde by Hadean and Noachian Impacts"],"prefix":"10.1177","volume":"21","author":[{"given":"Saeka","family":"Masuda","sequence":"first","affiliation":[{"name":"Department of Earth Science, Tohoku University, Sendai, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshihiro","family":"Furukawa","sequence":"additional","affiliation":[{"name":"Department of Earth Science, Tohoku University, Sendai, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takamichi","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"National Institute for Materials Science, Tsukuba, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshimori","family":"Sekine","sequence":"additional","affiliation":[{"name":"Center for High Pressure Science &amp; Technology Advanced Research, Shanghai, China."},{"name":"Graduate School of Engineering, Osaka University, Osaka, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Kakegawa","sequence":"additional","affiliation":[{"name":"Department of Earth Science, Tohoku University, Sendai, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,3,25]]},"reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"publisher","DOI":"10.1175\/1520-0469(1988)045<3081:EOAIGH>2.0.CO;2"},{"key":"e_1_3_2_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/342255a0"},{"key":"e_1_3_2_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsearthspacechem.9b00006"},{"key":"e_1_3_2_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2015.06.016"},{"key":"e_1_3_2_6_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.040539497"},{"key":"e_1_3_2_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/syst.201900035"},{"key":"e_1_3_2_8_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja500708w"},{"key":"e_1_3_2_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0040-4039(01)99487-0"},{"key":"e_1_3_2_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2009.06.042"},{"key":"e_1_3_2_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/355125a0"},{"key":"e_1_3_2_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/srep23199"},{"key":"e_1_3_2_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.precamres.2008.04.002"},{"key":"e_1_3_2_14_1","doi-asserted-by":"publisher","DOI":"10.2138\/rmg.2016.81.04"},{"key":"e_1_3_2_15_1","doi-asserted-by":"publisher","DOI":"10.1038\/ngeo891"},{"key":"e_1_3_2_16_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1164759"},{"key":"e_1_3_2_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0019-1035(03)00144-1"},{"key":"e_1_3_2_18_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1412072111"},{"key":"e_1_3_2_19_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1700010114"},{"key":"e_1_3_2_20_1","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361\/201935435"},{"key":"e_1_3_2_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2007.04.014"},{"key":"e_1_3_2_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/ngeo383"},{"key":"e_1_3_2_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gca.2011.08.029"},{"key":"e_1_3_2_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.icarus.2013.11.033"},{"key":"e_1_3_2_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.epsl.2015.07.049"},{"key":"e_1_3_2_26_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1907169116"},{"key":"e_1_3_2_27_1","doi-asserted-by":"publisher","DOI":"10.1038\/2001201a0"},{"key":"e_1_3_2_28_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1011945222010"},{"key":"e_1_3_2_29_1","first-page":"493","article-title":"The time-dependent intense bombardment of the primordial Earth\/Moon system","author":"Hartmann W.K.","year":"2000","unstructured":"Hartmann W.K., , Ryder G., , Dones L., , and Grinspoon D. 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