Webirregular grains or growths of several sulfides around lithic fragments. The same mineral assemblages are present in porphyry, but they are well crystallized and spheroids are absent. Silver, lead, and zinc decrease in grade below 3,975 m elevation, but copper and gold increase. This latter potential has not been significantly drill-tested. WebRegolith Breccia 166.3, 103.2 and 65.2 grams Figure 1a: Sample 14041 - 14045 on lunar surface. MET and LM in distance. AS14-68-9409. Introduction . Samples 14041 – 14046 are fragments from a fractured clod that broke apart when it was collected. They were returned in doc bags 3N and 4N in ALSRC 1006. The sample collection site was 150 m NE of
Co-ignimbrite lithic-lag breccias and intra-graben …
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Breccia SpringerLink
WebAfter the relatively high-energy, vent-opening event that produced both pyroclastic flow and surge and chaotic accessory-lithic breccia debris flow deposits, the regular layering of a … Web25 jan. 2024 · NWA 7948 is a lunar mingled regolith breccia, predominately composed of a wide variety of crustal lithologies from the basalt (VLT and low-Ti basaltic clasts), … Web6 jul. 2015 · These sediments are dominated by breccia, conglomerate, and sandstone, suggesting rapid erosion and deposition, with steep-gradient streams capable of transporting coarse lithic debris. The basin also contains fine-grained lacustrine sediments that are the source of the prolific Stonerose fossil beds ( Figure 3 ). church of the little flower bethesda md