Tion of Sediments three.2.1. Mineral Composition of Sediments Information around the XRD quantitative mineralogical analysis are listed in Table 3. Sediment Information on the XRD quantitative mineralogical analysis are listed in Table three. Sediment from the active chimney’s foot (LV 1) was presented by anhydrite and gypsum (37 ). from the active chimney’s foot (LV 1) was presented by anhydrite (63 )(63 ) and gypsum Substratum with the Calyptogena pacifica (LV 8) is composed of calcite (89 ), dolomite (37 ). (five ), and barite (3 ), with admixtures (to 2 ) of quartz and andesine. The XRD evaluation of selected grains of unique active southern prime from Piip Volcano and in the backTable three. Mineral composition of sediment specimens from thecolours separated from the the bulk sediment, demonstrated that the dark grains are quartz (39 ), andesine (28 ), smectite (17 ), heilandite (eight ), ground area. pyrite, and barite (5 and three , respectively). The grey grains were identified as dolomite, talc, Numbers of and calcite, even though the light-grey grains Samples have been composed of calcite (95 ) and clay mineral LV 1 LV 8 LV eight LV 8 LV eight LV 9 smectite (five ). The major constituent of Ziritaxestat Inhibitor background sediment (station LV 9) is calcite (94 ), Sediment on Foot of Active Calypto-Gena’s Minerals Dark of quartz,Grey Grains amphibole,Grains as the clay minerals Background with admixtures (to 1 of each and every) Grains andesine, Light-Grey as well Anhydrite Olesoxime Purity & Documentation Chimney Substratum (smectite, illite, and chlorite). 39 Quartz 1Andesine Amphibole Barite Anhydrate Calcite Dolomite Smectite Illite Chlorite Pyrite Gypsum Talc 2 3 63 89 5 17 five 89 95 five 94 1 1 1 28 three 15 37Minerals 2021, 11,13 ofTable three. Mineral composition of sediment specimens from the active southern best on the Piip Volcano and in the background area. Numbers of Samples LV 1 Minerals Quartz Andesine Amphibole Barite Anhydrate Calcite Dolomite Smectite Illite Chlorite Pyrite Gypsum Talc Heilandite eight 37 six five 63 89 five 17 5 89 five 1 1 1 95 94 3 three Sediment on Foot of Active Anhydrite Chimney LV 8 Calyptogena Substratum 1 2 LV eight Dark Grains 39 28 LV eight Grey Grains LV 8 Light-Grey Grains LV 9 Background 1 13.two.two. Elemental Composition of Sediments Data of ICP-MS analysis around the elemental composition of natural bulk sediments is supplied in Table S3. The analyses of TOC demonstrated a robust depletion of sediments in organic carbon (0.01 to 0.07 ) for all three samples. A low TOC content is most likely triggered by the mineral composition of sediments, that contained the authigenic carbonates, volcanogenic and terrigenous material in the ice-rafted debris of distinctive sizes. Such deposits are typically characterized by the low content material of organic carbon. The TIC content was also low inside the case of anhydrite deposits. Around the contrary, sediments in the southern slope, from both C. pacifica’s settlements and background zone, are enriched in TIC.55 and 9.56 , respectively (Table S3). The latter suggests a predominance of carbonate material (79.six ) in sediments from the southern top, which is in rather excellent agreement using the data with the XRD mineralogical analysis. In the anhydrite deposits, only three elements have been detected in noticeable concentrations (ppm): Sr (2812), Fe (691), and Ba (62), when the rest of examined elements had been detected in very low (10 to 1 ppm) and also negligible (1 ppm) contents. In sediments in the C. pacifica’s settlements, contents of all of the elements exceeded noticeably those from the anhydrite deposits and background zone (Table S3). Considering the fact that.