Sentence examples for 1 tephra from inspiring English sources

Fig. 3 Example of the Harker diagrams for correlative tephra samples from Sites U1426 (NK270), U1427 (NK193), U1429 (NK232), and the Aso-1 tephra in Lake Biwa sediment Fig. 4 Scanning electron images of volcanic glass shards of the Aso-1 tephra at Sites U1426, U1427, U1429, and Lake Biwa Table 1 Tephra layers identified at Sites U1426, U1427, and U1429 U1429 U1427 U1426 Tephra name Sample no.

The following procedure was recommended by AIPC for ash affected farms: 1) Tephra be removed from fields and channels (particularly when 3 cm or greater).

Consequently, based on the 40Ar/39Ar ages of the Unit 1 tephra and Basalt 7 and the unconformity identified between Units 1 and 2, we correlate the deposition of Units 5 to 4 with late OIS 10/early OIS 9e, deposition of and pedogenesis within Units 3 to 2 with OIS 9e (335 to 325 ka), and accretion of the overlying truncated basal remnant of Unit 1 with OIS 9c/b (Fig. 3).

Therefore, these three tephra layers correlate to the Aso-1 tephra.

The Aso-1 tephra lies beneath the maximum δ18O value in MIS 8 (Fig. 6).

However, the Aso-1 tephra occurs within a period of cool-boreal conditions, equivalent to MIS 8.

The depth of this event at Site U1427 is between 112.05 and 112.77 m, which is prior to the Aso-1 tephra (272 ka) and the peak of subtropical species at MIS 9a (285 ka).

It is clear from these data that the material derives from the Icelandic Katla system, but there are multiple candidate tephras: the Vedde Ash (rhyolitic fraction; mid-Younger Dryas/GI-1), tephra AF555 (late Younger Dryas/GI-1), and the Suduroy tephra dated to the early Holocene.

When α>β, the release pattern is shifted towards the top of the plume; when α=β≠1 tephra release is greatest from the middle of the plume; when α<β the release pattern is shifted toward the base of the plume.

● VEI 5: tephra volume ≥ 1 km3.

Contours represent kg m-2 tephra accumulation on the ground.