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Creating Mineral "Frankenspectra" Using UV-VNIR-MIR Reflectance Data from Three Different Laboratories

Lane, M.D. and Hendrix, A. and Clark, R.N. and Cloutis, E. and Dyar, M and Helbert, Jörn and Maturilli, Alessandro and Pearson, N (2020) Creating Mineral "Frankenspectra" Using UV-VNIR-MIR Reflectance Data from Three Different Laboratories. AGU Fall Meeting, 2020-12-01 - 2020-12-17, Virtual.

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Official URL: https://agu.confex.com/agu/fm20/meetingapp.cgi/Paper/747757

Abstract

Reflectance spectroscopy is a useful method for identifying an unknown mineral, if its spectrum can be compared to a spectral library that includes quality spectra of the same mineral. However, a mineral sample measured in different labs will often result in varied spectra due to the way the sample is placed into the sample cup, the calibration of the data, the spectrometer hardware and light sources used, or other issues. Our team measured a suite of 28 mineral samples in 3 different labs to expose differences in the resulting spectra in order to modify the data acquisition strategy both to improve and converge on the best sample spectra. The labs involved were the Planetary Spectroscopy Lab at the German Aerospace Center, the Centre for Terrestrial and Planetary Exploration at the University of Winnipeg, and the Planetary Geosciences Lab at the Planetary Science Institute. After the best data were acquired from each of the labs and plotted together, it was clear that no single lab/instrument offered the best overall spectrum; rather, each lab/instrument best presented a portion of the overall wavelength region studied. Therefore, a spectral library would benefit from one best-quality, most representative spectrum of a sample, constructed using the best wavelength pieces of the spectra acquired at various labs. We are calling these blended/spliced mineral spectra “Frankenspectra”, i.e., spectra built in a laboratory and stitched together with human modification, akin to Dr. Frankenstein’s monster (but in a good way). We will present the details of our samples, the laboratories, our ambient-temperature data from the 3 labs, as well as our derived Frankenspectra of the minerals. These data will be archived at the Planetary Data System Geosciences Node (GEO), including all the original individual spectra and the best-representative Frankenspectrum of each mineral. In the near future we will be acquiring similar measurements and creating similar spectra with meteorite samples that currently are being prepared for us at NASA Johnson Space Center’s curatorial facility.

Item URL in elib:https://elib.dlr.de/147468/
Document Type:Conference or Workshop Item (Speech)
Title:Creating Mineral "Frankenspectra" Using UV-VNIR-MIR Reflectance Data from Three Different Laboratories
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Lane, M.D.Fibernetics LLCUNSPECIFIEDUNSPECIFIED
Hendrix, A.Planetary Science Institute, (Tucson, AZ)UNSPECIFIEDUNSPECIFIED
Clark, R.N.Planetary Science Institute TucsonUNSPECIFIEDUNSPECIFIED
Cloutis, E.University of Winnipeg, Winnipeg, CanadaUNSPECIFIEDUNSPECIFIED
Dyar, MDept. of Astronomy, Mount Holyoke College, South Hadley, MA USAUNSPECIFIEDUNSPECIFIED
Helbert, JörnUNSPECIFIEDhttps://orcid.org/0000-0001-5346-9505UNSPECIFIED
Maturilli, AlessandroUNSPECIFIEDhttps://orcid.org/0000-0003-4613-9799UNSPECIFIED
Pearson, NPlanetary Science Institute, (Tucson, AZ)UNSPECIFIEDUNSPECIFIED
Date:2020
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Planetary geochemistry, Instruments and techniques, Optical, infrared, and Raman spectroscopy, Composition, solid surface planets
Event Title:AGU Fall Meeting
Event Location:Virtual
Event Type:international Conference
Event Start Date:1 December 2020
Event End Date:17 December 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project BepiColombo - MERTIS and BELA
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Laboratories
Deposited By: Maturilli, Dr. Alessandro
Deposited On:15 Dec 2021 10:05
Last Modified:24 Apr 2024 20:46

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