Table 1. Petrography of the basement samples analyzed from Site 976.

Core, section, interval (cm)	Rock type	Petrologic group
161-976B-
76R-1, 93-97	Bt Amp schist	1: High-grade schist (metapelite)
83R-2, 94-98	Bt-Sil-And-Pl-Kfs schist	1: High-grade schist (metapelite)
95R-1, 25-29	Bt gneiss (quartz-rich)	3: Felsic gneiss and leucosome
96R-1, 35-39	Bt-Ms-Sil-And-Crd-Pl-Kfs migmatitic gneiss	2: Banded gneiss and migmatitic gneiss
98R-2, 48-50	Qtz-Crd-Kfs-Ms-And-Bt leucosome	3: Felsic gneiss and leucosome
101R-1, 19-21	Banded gneiss with Amp-Crd-, Bt-, and Pl-Kfs-And layers	2: Banded gneiss and migmatitic gneiss
106R-1, 94-97	And-Sil-Crd-Fd-Bt gneiss (quartz-rich)	3: Felsic gneiss and leucosome
161-976E-
16R-1, 106-110	Interlayered Bt-Amp schist and Spl-Px calc-schist	1a: High-grade schist and calc-silicate rock
19R-1, 4-8	Bt-Sil-Pl-Kfs schist	1: High-grade schist (metapelite)
21R-1, 134-139	Pl-Bt-Sil-Tur schist	1: High-grade schist (metapelite)
22R-1, 120-122	Pl-Bt-Grt schist	1: High-grade schist (metapelite)