{"id":28548,"date":"2021-08-05T22:59:06","date_gmt":"2021-08-05T20:59:06","guid":{"rendered":"https:\/\/karmaka.de\/?p=28548"},"modified":"2021-08-05T22:59:06","modified_gmt":"2021-08-05T20:59:06","slug":"absence-of-a-long-lived-lunar-paleomagnetosphere","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=28548","title":{"rendered":"Absence of a long-lived lunar paleomagnetosphere<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>John A. Tarduno, Rory D. Cottrell, Kristin Lawrence, Richard K. Bono, Wentao Huang, Catherine L. Johnson, Eric G. Blackman, Aleksey V. Smirnov, Miki Nakajima, Clive R. Neal, Tinghong Zhou, Mauricio Ibanez-Mejia, Hirokuni Oda, Ben Crummins<\/p>\n\n\n\n<p>Science Advances 04 Aug 2021:<br>Vol. 7, no. 32, eabi7647<\/p>\n\n\n\n<p><a href=\"https:\/\/advances.sciencemag.org\/content\/7\/32\/eabi7647\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/advances.sciencemag.org\/content\/advances\/7\/32\/eabi7647.full.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;Determining the presence or absence of a past long-lived lunar magnetic field is crucial for understanding how the Moon\u2019s interior and surface evolved. Here, we show that Apollo impact glass associated with a young 2 million\u2013year\u2013old crater records a strong Earth-like magnetization, providing evidence that impacts can impart intense signals to samples recovered from the Moon and other planetary bodies. Moreover, we show that silicate crystals bearing magnetic inclusions from Apollo samples formed at \u223c3.9, 3.6, 3.3, and 3.2 billion years ago are capable of recording strong core dynamo\u2013like fields but do not. Together, these data indicate that the Moon did not have a long-lived core dynamo. As a result, the Moon was not sheltered by a sustained paleomagnetosphere, and the lunar regolith should hold buried 3He, water, and other volatile resources acquired from solar winds and Earth\u2019s magnetosphere over some 4 billion years.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>John A. Tarduno, Rory D. Cottrell, Kristin Lawrence, Richard K. Bono, Wentao Huang, Catherine L. Johnson, Eric G. Blackman, Aleksey V. Smirnov, Miki Nakajima, Clive R. Neal, Tinghong Zhou, Mauricio Ibanez-Mejia, Hirokuni Oda, Ben Crummins&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,115,219],"tags":[1279,2061,1827,1277,3440,1420,1857,590],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28548"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28548"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28548\/revisions"}],"predecessor-version":[{"id":28549,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/28548\/revisions\/28549"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}