Album 3 - High-Temperature Impact Melt
"Science Related" not "Scientifically Related"
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Baked mud adhering to heated country rock and shock-melt pseudotachylite fragments, the glassy obsidian look-a-like
in situ formation. The grayish portions of these rocks are black on the inside as the last photo shows.
Group of high-temperature
melt rocks with close-ups
(photos 1 - 7)!
Additional photos for section 3, covering impact structure criteria 4, on high-temperature
evidence.
Impact melt rocks, some with surface that are a dull black and fine texture and others with surface that are intense black and glassy in appearance.
These rocks have a pumice-like appearance, however, with smaller vesicles and a much gentler looking surface than those seen on pumice or scoria
formed from lava flow.
Highly magnetic vesicular, mixture of glass and metal believed to be portions of the comet's fusion crust. A high metal content fragment is seen on
the far right (photo 2). The aggregate of colors showing on the fragments may be indicative of the pieces being subjected to very high temperature.
Close-up on broken fragments showing glass and vesicles (photo 4).
Shock-induced transformation of quartz to fused silica glass - lechatelierite (photos 1 - 3). Have not identify the melt in photo 4, only, the fragments
show a thin line of foamy melt glass on the edges.
Believed to be carbonate-phosphate melt rock... one of the many unusual impact melt rock to be found in Sedimentary target (photos 1 - 3). Possible
calcite crystals surrounded by phosphate glass (photos 4 & 5).
Photo 1
Photo 2
Photo 3
Photo 4
photo 5
Photo 6
Photo 7
Photo 8
Photo 9
Photo 10
Photo 12
Photo 11
Glass-like carbon with conchoidal fractures and lancet markings typical of glass fractures (photo 2). This piece of carbon appeared in between that of
the glass-like carbon and the dull graphite. Its layers are align for the most part with colors one would see on a piece of tendered steel indicating that
it experienced high temperature (photo 3). Surface appearance of the glass-like carbon and the dull graphite (photo 4). Glass-like carbon with sheets,
with diagonal lines on each sheets, haphazardly placed on the block (photo 5).
Dull graphite with layers, however, the placement of each layer appears unfinished and bumpy (photo 6) Glassy carbon with the appearance of
having experienced high temperature. On close inspection, its surface sparkles with tiny crystals (photo 7). Photos 8 - 12 is my attempt to show the
crystals using a 30x magnifier.