FIG. 1.

(A) Map of Kilauea caldera and approximate locations of sampling sites. Exact positions represent GPS data. I-A, 19^o 25′ 29.2" N × 155^o 16′ 55.6" W; I-B, 19^o 23′ 52.7" N × 155^o 17′ 44.6" W; I-C, 19^o 23′ 56.7" N × 155^o 16′ 59.5" W; I-D, 19^o 24′ 06.0" N × 155^o 16′ 40.1" W; I-E, 19^o 23′ 50.6" N × 155^o 16′ 26.3" W; II-B, 19^o 24′ 22.5" N × 155^o 15′ 18.2" W; II-C, 19^o 23′ 13.3" N × 155^o 14′ 37.7" W. (Redrawn from reference 21a with permission of the Hawaii Natural History Association.) (B) Map of Mauna Ulu region, about 8 km south of site II-C; II-A, 19^o 21′ 38.1" N × 155^o 13′ 12.9" W. (Redrawn from U.S. Geological Survey map 19155-D3-PF-100.)