Figure 12 | Scientific Reports

Figure 12

From: Evidence of Cosmic Impact at Abu Hureyra, Syria at the Younger Dryas Onset (~12.8 ka): High-temperature melting at >2200 °C

Figure 12

SEM images of Fe enriched in Pt, Ir, and Ni on outer surfaces of AH glass. (a) Melted 2.5-μm-wide AH subrounded glass. Box marks area with abundant NiFe globules. (b) Surface of AH glass with hundreds of NiFe globules with Ni content of ~2.0 wt.%. (c) Inside of vesicle in AH glass shown in (a), containing hundreds of NiFe globules. Middle globule at arrow contains ~19.5 wt.% Ni and ~9.7 wt.% Fe. (d) Multi-element EDS map (see the legend at lower left) of the surface of AH glass displaying numerous NiFe globules (reddish-orange), a combination of Fe (red) and Ni (yellow). Note there are no globules on the broken upper edge, indicating they did not form inside the AH glass, only on the surface, suggesting possible formation by vapor deposition. (e) Thin, flat fragment of AH glass with plant imprints and NiFe globules. Note that plant imprints formed on top of the NiFe, indicating that the imprinting occurred after the glass melted. (f) AH glass with long grain with ~20.9 wt.% platinum and ~6.9 wt.% iridium. (a–d) from level 457, sample E313, 413 cm depth. (e) from level 445, sample E301, 405 cm depth. (f) from level 449, sample E305, 412 cm depth.

Back to article page