Spectroscopic characterization of samples from different environments in a Volcano-Glacial region in Iceland: Implications for in situ planetary exploration

Bower, D. M.; Yang, Clayton S.-C.; Hewagama, T.; Nixon, C. A.; Aslam, Shahid; Whelley, P. L.; Eigenbrode, J. L.; Jin, Feng; Ruliffson, Jennifer E.; Kolasinski, John R.; Samuels, Alan C.

doi:10.1016/j.saa.2021.120205

Cited by 11 publications

(9 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A recent study speculates about the possible formation of anatase associated with microbial alteration in a volcano-glacial region in Iceland 49 . Nonoyama et al .…”

Section: Resultsmentioning

confidence: 99%

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration

Muñoz–Iglesias

Sánchez-García

Carrizo

et al. 2022

Sci Rep

View full text Add to dashboard Cite

In this work, we have analyzed natural samples collected at three hydrothermal areas of Iceland by Raman spectroscopy. The studied high-latitude regions are considered environmentally and mineralogically appropriate Martian analogues since they are rich in weathered basalts that have been altered by hydrothermalism to mineral phases such as silica, clay minerals, sulfates, oxides, and sulfur. The main objective of this work was to assess the relation of the spectroscopic signatures of alteration to hydrothermal processes and biomediation, considering previous studies focused on the detection of lipid biomarkers in the same samples. The recorded Raman spectra, taken with optical parameters similar to the ExoMars 2022 Raman spectrometer, showed structural modifications in all secondary minerals in the form of peak shifts (in the case of sulfur and clay minerals), changes in the relative ratio intensity (in anatase) and/or shape broadening (in sulfates and hematite). These results reveal the suitability of Raman spectroscopy to examine areas rich in water-altered minerals, where a mixture of crystalline and amorphous phases can co-exist. The detection of silica is singularly interesting since, on the one hand, it can imply the past existence of hydrothermal hot springs rich in nutrient and redox gradients and, on the other hand, provides excellent matrix for biosignature preservation. The data can be helpful as an astrobiological database for the forthcoming missions to Mars, where potential upwelling groundwater systems could have altered the mineral phases in a similar way to that observed in this work.

show abstract

“…A recent study speculates about the possible formation of anatase associated with microbial alteration in a volcano-glacial region in Iceland 49 . Nonoyama et al .…”

Section: Resultsmentioning

confidence: 99%

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration

Muñoz–Iglesias

Sánchez-García

Carrizo

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Another challenge for Raman spectroscopy is in distinguishing diagnostic peaks in samples of mixed composition, common for compositionally heterogeneous targets in natural environments. Structural commonalities between compounds can result in similar peak positions of many co-occurring substrates and organic compounds, resulting in the misinterpretation of spectra and possible misidentification [4] . And though UVN LIBS helps to clarify some of ambiguity in the Raman spectra, it is an atomic spectroscopic technology that reveals no information on molecular structures [5] .…”

Section: Methods Detailsmentioning

confidence: 99%

Raman and UVN+LWIR LIBS detection system for in-situ surface chemical identification

et al. 2022

Self Cite

View full text Add to dashboard Cite

“…Recent advances in laser-based optical spectroscopy demonstrate the effectiveness of non-contact methods for the remote sensing of chemicals deposited on surfaces [ 1 ]. For example, ultraviolet Raman spectroscopy demonstrates potential for non-contact standoff detection of hazardous materials on surfaces, but some great challenges remain.…”

Section: Introductionmentioning

confidence: 99%

“…Those molecular gases in the vicinity of the vapor–plasma plume were thermally excited by the hot plasma and emitted vibration–rotation spectral signatures in the mid-IR (MWIR to LWIR) region which could be readily used for molecular identification. Based on those discoveries, an innovative LWIR LIBS spectroscopy, sometimes referred to as laser-induced thermal emission (LITE), was recently developed [ 1 , 2 , 3 , 4 ]. In LWIR LIBS, the molecular structures of constituents are revealed by spectrally analyzing the emission profile from a laser-induced plasma generated on the target surface using mid-IR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Comparative Long-Wave Infrared Laser-Induced Breakdown Spectroscopy Employing 1-D and 2-D Focal Plane Array Detectors

Yang

Jin

Trivedi

et al. 2023

Sensors

Self Cite

View full text Add to dashboard Cite

Long-wave infrared (LWIR) emissions of laser-induced plasma on solid potassium chloride and acetaminophen tablet surfaces were studied using both a one-dimensional (1-D) linear array detection system and, for the first time, a two-dimensional (2-D) focal plane array (FPA) detection system. Both atomic and molecular infrared emitters in the vicinity of the plasma were identified by analyzing the detected spectral signatures in the infrared region. Time- and space-resolved long-wave infrared emissions were also studied to assess the temporal and spatial behaviors of atomic and molecular emitters in the plasma. These pioneer temporal and spatial investigations of infrared emissions from laser-induced plasma would be valuable to the modeling of plasma evolutions and the advances of the novel LWIR laser-induced breakdown spectroscopy (LIBS). When integrated both temporally (³200 µs) and spatially using a 2-D FPA detector, the observed intensities and signal-to-noise-ratio (SNR) of single-shot LWIR LIBS signature emissions from intact molecules were considerably enhanced (e.g., with enhancement factors up to 16 and 3.76, respectively, for a 6.62 µm band of acetaminophen molecules) and, in general, comparable to those from the atomic emitters. Pairing LWIR LIBS with conventional ultraviolet–visible–near infrared (UV/Vis/NIR) LIBS, a simultaneous UV/Vis/NIR + LWIR LIBS detection system promises unprecedented capability of in situ, real-time, and stand-off investigation of both atomic and molecular target compositions to detect and characterize a range of chemistries.

show abstract

Spectroscopic characterization of samples from different environments in a Volcano-Glacial region in Iceland: Implications for in situ planetary exploration

Cited by 11 publications

References 84 publications

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration

Raman and UVN+LWIR LIBS detection system for in-situ surface chemical identification

Comparative Long-Wave Infrared Laser-Induced Breakdown Spectroscopy Employing 1-D and 2-D Focal Plane Array Detectors

Contact Info

Product

Resources

About