READ ME This text describes the data presented in the paper: Aeolian driven silicate comminution unlikely to be responsible for the rapid loss of Martian methane ======================== Introductory information ======================== Files included in the data deposit (include a short description of what data are contained): 1)nuclear magnetic resonance (NMR) speatra showing 14C silicon carbide bonds in Brucker software.The spectra were recorded at 125.78 MHz using a Bruker Avance III HD 500 spectrometer equipped with a MASSB-DR-BB/1H&19F- 4mm probe. 2) Fourier Transform Infrared (FTIR)spectroscopy showing infrared spectra of in the region of silcon carbide bonds. Spectra were collected on a Nicolet 4100 FTIR spectrometer stored as PFD files. 3) X-photoelectron spectroscopy (XPS) spectra were collected on a THeremo scientific K-alspha X-ray photoelectron spectrometer stored as vms files and as PDF images. 4) Theremogravimetic digital scanning calorimetry mass spectrometry. (TGA) used to meature water content and this data was stored as comma seperated values twhich were converted to sperta using Excel spreadsheet plots. Each spectra shows presence or absence of silicaon carbide bonds. Key words used to describe the data: XPS NMR FTIR Mechanochemistry Methane Mars ========================== Methodological information ========================== A brief method description – what the data is, how and why it was collected or created, and how it was processed: NMR, XPS and FTIR were used to measure the formation of Silicon Carbide bonds through low impact mechanochemical reactions to mimic possible wind driven mechanochemical reaction that may occur in the silicaon rich minerals on mars leading to the higher than expected loss through photolysis Instruments, hardware and software used: 1) NMR: Bruker Avance III HD 500 spectrometer: The spectra were obtained using cross-polarisation with a 4 s recycle delay, 2 ms contact time and 20480 scans (total acquisition time 22 hrs, 46 mins). Data were recorded at ambient probe temperature (25 °C) and a spin rate of 6 kHz, with an additional 8 kHz analysis performed on the borosilicate and quartz samples to provide a greater definition of the spectral peaks. Spectra referencing was with respect to an external sample of neat tetramethylsilane (performed by setting the high-frequency signal from adamantane to 37.8 ppm). 2) FTIR THeremaoscietify nicolet 4100: conducted in the mid to far-infrared range, using a Nicolet 4100 Fourier transform infra-red (FTIR) spectrometer (Thermo Fisher Scientific, MA, U.S.A.), with a diamond platform attenuated total reflectance (ATR) module (Specac Ltd. London, UK) attached. Background scans were taken before each analytical scan and spectra were obtained from 32 replicate scans conducted between 4000 cm-1 to 550 cm-1, in 4 cm-1 steps. Spectra were analysed using Omnic 8.2.0.387 software (Thermo Fisher Scientific, MA, U.S.A.). Linear background deduction was performed and the spectra between 1400 cm-1 to 550 cm-1 have been presented here. Band identification was conducted using the Sigma Aldrich FTIR table (www.sigmaaldrich.com/technical-documents/articles/biology/ir-spectrum-table.html) and bands derived from standard materials reported in the literature 3) XPS Thermos cinetific K-alpha: Survey spectra (broad energy, multiple elements) were used to obtain the quantitative elemental data from the obtained with scans between -5.0 eV and 1350.0 eV; a dwell time of 50 ms; a step size of 1.0 eV and a pass energy of 200.0 eV.High resolution (narrow scan, single element) carbon 1s (C1s) and silicon (Si2p) spectra were collected at 40 eV pass energy with a 0.1 eV step size. Spectra were acquired using a monochromatic Al Ka X-ray source with an output energy of 1486.6 eV with a maximum X-ray beam spot size of 400 µm. Surface charge compensation was obtained with a low energy dual-beam electron/ion flood gun operated at 40 eV. Spectral analysis was carried out using CasaXPS software (CasaXPS Ltd. Teignmouth, UK) with major peaks selected for element identification using the Handbook of X-ray photoelectron spectroscopy (Chastain and King, 1995). Any energy shifts were calibrated using the Na1s binding energy at 1072.0 eV. The carbide binding energy was obtained from the La Surface online database (www.lasurface.com) and confirmed with a high-resolution XPS C1s scan of a silicon carbide standard (Product number: 378097, Sigma Aldrich, Dorset, UK), Date(s) of data collection: NMR:24 to 29 April 2021 Geographic coverage of data: Mineral/Rock Sample Source Basalt Geology Superstore, tertiary, Isle of Skye Borosilicate glass 2 mm diameter beads, Sigma Aldrich (Product code: Z273627) Feldspar Plagioclase Feldspar (Albite-Anorthite) Geology Superstore, Osedalen, Southern Norway Obsidian Geology Superstore, Aheim, Western Norway Olivine Forsterite, Geology Superstore, Opal Green Opal mine run rough – Madagascar, Fantasia mining. Pyroxene Augite-pyroxene, 1kg, cleavages, Wards Science (VWR) Quartz (crystalline) Geology Superstore, Quartz points, Madagascar Zeolite Natural zeolite (Clinoptilolite), from eBay seller Freyberg (8844). The Data collected from different instrumants using 14C measurmants (NMR), energy shift on core photoelectron emmissions infta red absorbtion (FTIR) were constant in showing in which mineral Silicon carbide bonds were formed. TGA showed that thre was no relationship between the presence of water and the absence of silion carbide bonds. ======= Contact ======= Please contact rdm@ncl.ac.uk for further information