This readme.txt file was generated on <20201221> by ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset: Data for "Late Paleozoic depositional environments and sediment transport directions of the Itararé Group rocks from the state of São Paulo, Brazil, determined from rock magnetism and magnetic anisotropy" collected at the University of Sao Paulo and the University of Minnesota between 2012 and 2020. 2. Author Information Principal Investigator Contact Information Name: Dario Bilardello Institution: University of Minnesota Address: University of Minnesota Institute for Rock Magnetism Email: dario@umn.edu ORCID: Undergraduate student William Callebert contributed to data acquisition at the University of Minnesota during 2013-2014. 3. Date of data collection: 2012-2020 4. Geographic location of data collection: AMS data for sites IT1-16 were collected at the Institute of Geosciences, University of Sao Paulo, Brazil; AMS data for sites II1-20 and all rock-magnetic data were collected at the Institute for Rock Magnetism, Minneapolis, MN 5. Information about funding sources that supported the collection of the data: Sponsorship: Research was funded through the Sao Paulo Research Foundation (FAPESP 2011/51204-0), the Instrumentation and Facilities program of the National Science Foundation Earth Sciences Division (NSF/EAR 1028690 and 1339505), the University of Minnesota Undergraduate Research Opportunity (UROP) -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: https://creativecommons.org/publicdomain/zero/1.0/ 2. Links to publications that cite or use the data: Bilardello, D., Late Paleozoic depositional environments and sediment transport directions of the Itararé Group rocks from the state of São Paulo, Brazil, determined from rock magnetism and magnetic anisotropy. Submitted to Geochem., Geophys., Geosyst. 3. Links to other publicly accessible locations of the data: n/a 4. Recommended citation for the data: Bilardello, Dario. (2020). Data for "Late Paleozoic depositional environments and sediment transport directions of the Itararé Group rocks from the state of São Paulo, Brazil, determined from rock magnetism and magnetic anisotropy" collected at the University of Sao Paulo and the University of Minnesota between 2012 and 2020.. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/jjdx-1m95. --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: Hysteresis.xlsx Short description: Magnetic Hysteresis Size/Format: 917 Kb Microsoft Excel 2007 Variables (headers) = 3 B (T) T (K) M (Am^2/kg) Mf (Am^2/kg) Each tab contains single specimen hysteresis loop data (field (B), uncorrected magnetization (M)), and corrected (ferrimagnetic) magnetization (Mf), acquired at room temperature (300 K). B. Filename: MPMS.xlsx Short description: direct current (DC) Remanent Magnetization and alternating current (AC) Magnetic Susceptibility data. Size/Format: 311 Kb Microsoft Excel 2007 Variables (headers) = 2 DC data: Temperature (K) FC, remanence (M, Am2/kg) ZFC, remanence (M, Am2/kg) RT remanence on cooling (M, Am2/kg) RT remanence on warming (M, Am2/kg) DC data: Temperature (K) PTRM remanence on cooling, measured after cooling in a 2.5T field between 400 and 300 K (M, Am2/kg) PTRM remanence on warming (M, Am2/kg) Post-AF remanence on cooling, measured after AF demagnetizing in a 200 mT field (M, Am2/kg) Post-AF remanence on warming Post-400K remanence on cooling, measured after heating to 400 K (M, Am2/kg) Post-400K remanence on warming (M, Am2/kg) Each tab contains single specimen data named after the specimen and experiment type (DC). Temperature represents the temperatures at which the mass-normalized magnetic remanence measurements were made, between 20 and 400K. AC data: Temperature (K) X'(1 Hz) (m3/kg) X"(1 Hz) (m3/kg) X'(10 Hz) (m3/kg) X"(10 Hz) (m3/kg) X'(100 Hz) (m3/kg) X"(100 Hz) (m3/kg) Each tab contains single specimen data named after the specimen experiment type (AC). Temperature represents the temperatures at which magnetic measurement were made, between 10 and 300K. X' denotes in-phase mass-normalized susceptibility, whereas X" denotes out-of-phase mass-normalized susceptibility (units of m3/kg) and acquired in frequencies of 1, 3, 10, 31.6, 100, 316.7 and 997 Hz and fields of 238.7 A/m. C. Filename: AMS.xlsx Short description: Anisotropy of Magnetic Susceptibility Size/Format: 286 Kb Microsoft Excel 2007 Variables (headers) = 1 Specimen: specimen identifier k1: maximum eigenvalues k2: intermediate eigenvalues k3: minimum eigenvalues D1,2,3: direction of eigenvector I1,2,3: inclination of eigenvectors L: magnetic lineation (k1-k2) F: magnetic foliation ((k1+k2)/2)-k3 q: L/F β (°): 90- I3 (degrees) Each tab is named after the lithology (Diamictite, Claystone, etc...) and contains the anisotropic principal susceptibility axes magnitudes (eigenvalues) and their orientations (eigenvectors). Magnetic Lineation, Foliation, q-value and imbrication with respect to the horizontal are calculated from these. Site: site names separated by lithology q: mean L/F for the sites β (°): mean β (°) (90- I3 in degrees) for the sites "Site-Litho" tab contains the mean values of q and β (°) calculated as the mean of the individual specimen's values for each site and separated by lithology. Sedimentary Regimes: empirical areas defining varying sedimentary regimes q: L/F (empirical) β (°): 90- I3 (degree, empirical) "q-β Plot" tab contains the values of q and β (°) that define the empirical regions described by Taira, A. (1989). Magnetic Fabrics and Depositional Processes. In Taira, A., Masuda, F. (Eds), Sedimentary Facies in the Active Plate Margin, Terra Scientific Publishing Company, Tokyo, Japan, pp. 43-77. Site-mean: site name S11,22..: site-mean matrix elements k1: site-mean maximum eigenvalues k2: site-mean intermediate eigenvalues k3: site-mean minimum eigenvalues D1,2,3: site-mean eigenvector directions I1,2,3: site-mean eigenvector inclinations "Site-mean data" tab contains the site mean anisotropy data calculated as the mean tensor for each site, and reported as tensor elements "s" and eigenvalues and eigenvectors. Site: site name separated by lithology Lmean data: site-mean magnetic lineation (K1/K2) Fmean data: site-mean magnteic foliation (K2/K3) "Flinn diagram" tab contains site-mean magnetic Lineation (K1/K2) and Foliation (K2/K3) data separated by lithology, calculated from the "Site-mean data". 2. Relationship between files: 3. Additional related data collected that was not included in the current data package: -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: Magnetic metadata used in the cited study on rock-magnetism and anisotropy of magnetic susceptibility (AMS) of the Itarare' Group rocks. AMS data for sites IT1-16 were collected at the Instituto de Geociencias, University of São Paulo, Brazil (IGc-USP) on an AGICO (Brno, Czech Republic) KLY-4S susceptibility bridge equipped with a single-axis rotator, in AC fields of 300 A/m at 875 Hz frequency. Specimens from sites II1-20 were measured at the Institute for Rock Magnetism, University of Minnesota, using an AGICO MFK1-FA equipped with a single-axis rotator, in AC fields of 200 A/m at 976 Hz frequency. Rock-magnetic measurements on specimens from all sites were conducted at the Institute for Rock Magnetism, University of Minnesota. Hysteresis loops were measured on Princeton Measurements Corporation (Princeton, NJ, USA) 3900 MicroMag Vibrating Sample Magnetometers (VSMs) in fields up to 1 or 1.5 T. DC and AC magnetic experiments were conducted on Quantum Design (San Diego, CA, USA) Magnetic Properties Measurement Systems (MPMSs). 2. Methods for processing the data: Anisotropy data were processed using the Pmag.Py software package (Tauxe, L., Shaar, R., Jonestrask, L., Swanson‐Hysell, N. L., Minnett, R., Koppers, A. A. P., et al. (2016). PmagPy: Software package for paleomagnetic data analysis and a bridge to the Magnetics Information Consortium (MagIC) Database. Geochemistry, Geophysics, Geosystems, 17(6), 2450–2463. https://doi.org/10.1002/2016GC006307) and principal axe reported are normalized so that their sum equals unity. 3. Instrument- or software-specific information needed to interpret the data: 4. Standards and calibration information, if appropriate: 5. Environmental/experimental conditions: 6. Describe any quality-assurance procedures performed on the data: 7. People involved with sample collection, processing, analysis and/or submission: