Data associated with "Replicate Apollo sample magnetizations showing evidence for impact plasmas and absence of a long-lived dynamo"

The absence or presence of a lunar paleomagnetosphere is important because it bears directly on the volatile content of the regolith and exploration targets for Artemis and other missions to the Moon. Recent paleointensity study of samples from the Apollo missions has readdressed this question. A young 2-million-year-old glass shows a strong magnetization compatible with that induced by charge-separation in an impact plasma, whereas paleointensities of single crystals yield evidence for null magnetizations spanning 3.9 to 3.2 Ga. Together, these data illustrate an impact mechanism for the magnetization of some lunar samples, and evidence for absence of a long-lived lunar core dynamo and paleomagnetosphere in other samples. Here, we present a dataset that allows researchers to examine replicates of these measurements. For the glass, we present data from specimens that fail standard paleointensity selection criteria but nevertheless imply a complex, changing magnetic field environment. For the single crystals, the replicate measurements further illustrate the initial zero magnetization state of these materials.Excel sheets of magnetometer data are included in this dataset that contain replicate measurements of demagnetization steps for experiments that were not reported in John A. Tarduno <i>et al.</i> Absence of a long-lived lunar paleomagnetosphere.<i>Sci. Adv. </i><b>7</b>, eabi7647(2021). DOI:10.1126/sciadv.abi764764455lunar_cryodata.xlsx - A tabbed Excel file with demagnetization data of 22 experiments, following Thellier-Coe (Coe, 1967) protocols done on Apollo 64455,24 . Lab field used for each sample is provided at the base of the tabulated data.12021g2.asc.xlsx<br>12021g3.asc.xlsx<br>12040g1.asc.xlsx12040g2.asc.xlsx<br>12040g3.asc.xlsx<br>12053g1.asc.xlsx<br>12053g2.asc.xlsx<br>14053g1.asc.xlsx<br>14053g2.asc.xlsx<br>14053g3.asc.xlsx<br>71055g1.asc.xlsx<br>71055g3.asc.xlsx<br>Excel files with replicated demagnetization measurements first reported in John A. Tarduno <i>et al.</i> Absence of a long-lived lunar paleomagnetosphere.<i>Sci. Adv. </i><b>7</b>, eabi7647(2021). DOI:10.1126/sciadv.abi7647<br>SI Figure 1 - Other Thelliers n=18.pdf -- additional plots of Thellier-Coe experiments done on Apollo 64455,24. Plots include orthogonal vector plots (a), enlargement of the origin of orthogonal vector plots (b), and Natural Remanent Magnetization (NRM) loss versus acquisition of a thermal remanent magnetization (TRM) in a known laboratory field.SI Figure 2 - All Stereonets copy.pdf -- Stereonets of field off steps for Apollo samples 14053,262; 12021,30; 12053,283; 12040,209; 71055,2.<br>README_Pmag GUI.pdf -- an explanation of how to view Thellier data with PMAG GUI and THELLIER GUI, standalone programs for viewing and analyzing paleomagnetic data, available from https://github.com/PmagPy