Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Surtsey' has mentioned 'Sea' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The undersea vents that produced Surtsey are part of the Vestmannaeyjar submarine volcanic system, part of the fissure of the sea floor called the Mid-Atlantic Ridge. | WIKI |
| The sea floor at the eruption site is 130 metres (430 feet) below sea level, and at this depth volcanic emissions and explosions would be suppressed, quenched and dissipated by the water pressure and density. | WIKI |
| [5] On 13 November, a fishing vessel in search of herring, equipped with sensitive thermometers, noted sea temperatures 3.2xc2xa0km (2.0xc2xa0mi) SW of the eruption center were 2.4xc2xa0xc2xb0C (4.3xc2xa0xc2xb0F) higher than surrounding waters. | WIKI |
| Instead, they encountered explosive eruptions giving off black columns of ash, indicating that a volcanic eruption had begun to penetrate the surface of the sea. | WIKI |
| The violent explosions caused by the meeting of lava and sea water meant that the island consisted of a loose pile of volcanic rock (scoria), which was eroded rapidly by North Atlantic storms during the winter. | WIKI |
| By early 1964, though, the continuing eruptions had built the island to such a size that sea water could no longer easily reach the vents, and the volcanic activity became much less explosive. | WIKI |
| On 28 December 1963, submarine activity to the northeast of Surtsey began, causing the formation of a ridge 100xc2xa0m (330xc2xa0ft) high on the sea floor. | WIKI |
| It had several causes: settling of the loose tephra forming the bulk of the volcano, compaction of sea floor sediments underlying the island, and downward warping of the lithosphere due to the weight of the volcano. | WIKI |
| Starfish are abundant, as are sea urchins and limpets. | WIKI |