Ion microprobe U–Th–Pb geochronology and study of micro-inclusions in zircon from the Himalayan high-and ultrahigh-pressure eclogites, Kaghan Valley of Pakistan
We report ion microprobe U–Th–Pb geochronology of in situ zircon from the Himalayan high-
and ultrahigh-pressure eclogites, Kaghan Valley of Pakistan. Combined with the textural
features, mineral inclusions, cathodoluminescence image information and the U–Th–Pb
isotope geochronology, two types of zircons were recognized in Group I and II eclogites.
Zircons in Group I eclogites are of considerably large size (> 100μm up to 500μm). A few
grains are euhederal and prismatic, show oscillatory zoning with distinct core–rim …
and ultrahigh-pressure eclogites, Kaghan Valley of Pakistan. Combined with the textural
features, mineral inclusions, cathodoluminescence image information and the U–Th–Pb
isotope geochronology, two types of zircons were recognized in Group I and II eclogites.
Zircons in Group I eclogites are of considerably large size (> 100μm up to 500μm). A few
grains are euhederal and prismatic, show oscillatory zoning with distinct core–rim …
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