Maund, J. G., Rex, D. C., Le Roex, A. P., Reid, D. L. (1988) Volcanism on Gough Island: a revised stratigraphy. Geological Magazine, 125 (2) 175-181 doi:10.1017/s0016756800009572
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Volcanism on Gough Island: a revised stratigraphy | ||
| Journal | Geological Magazine | ||
| Authors | Maund, J. G. | Author | |
| Rex, D. C. | Author | ||
| Le Roex, A. P. | Author | ||
| Reid, D. L. | Author | ||
| Year | 1988 (March) | Volume | 125 |
| Issue | 2 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756800009572Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 253804 | Long-form Identifier | mindat:1:5:253804:8 |
| GUID | 0 | ||
| Full Reference | Maund, J. G., Rex, D. C., Le Roex, A. P., Reid, D. L. (1988) Volcanism on Gough Island: a revised stratigraphy. Geological Magazine, 125 (2) 175-181 doi:10.1017/s0016756800009572 | ||
| Plain Text | Maund, J. G., Rex, D. C., Le Roex, A. P., Reid, D. L. (1988) Volcanism on Gough Island: a revised stratigraphy. Geological Magazine, 125 (2) 175-181 doi:10.1017/s0016756800009572 | ||
| In | (1988, March) Geological Magazine Vol. 125 (2) Cambridge University Press (CUP) | ||
| Abstract/Notes | AbstractRecent field work on Gough Island combined with K–Ar dating of the lavas requires revision of the age and volcanic stratigraphy. Four main periods of volcanic activity on the island are recognized. These comprise the eruption of the Older Basalt Group which ranges in age from 2.5 to 0.52 Ma, the intrusion of aegerine-augite trachyte plugs (0.8−0.47 Ma), voluminous trachyte extrusion (0.30–0.12 Ma) and finally to eruption of the Edinburgh Basalt (0.20–0.13 Ma).Within the Older Basalt Group three phases of activity can be recognized; the earliest involving the eruption of pillow basalts and hyaloclastites when the island emerged from below sea level. This was followed by subaerial as-type lava flows and also dyke intrusion (phase two) which probably contributed to forming a large shield-type volcanic island, which in turn supported the eruption and deposition of flat-lying flows on an angular unconformity (phase three). Intrusion of aegirine-augite trachyte plugs occurred concurrently with the latter stages of Older Basalt eruption. After a period of considerable erosion the voluminous trachyte lavas and pyroclastics were erupted. The Edinburgh Basalt, erupted in the vicinity of Edinburgh Peak, represents the youngest volcanic activity on the island. | ||
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