Download Origin and Formation of Coastal Boulder Deposits at Galway by Wibke Erdmann, Dieter Kelletat, Anja Scheffers, Simon K. PDF

By Wibke Erdmann, Dieter Kelletat, Anja Scheffers, Simon K. Haslett

ISBN-10: 3319163329

ISBN-13: 9783319163321

ISBN-10: 3319163337

ISBN-13: 9783319163338

This ebook provides geomorphological and sedimentological points of Holocene boulder ridges alongside the beach of western eire (the Aran Islands and Galway Bay). Given those boulders’ measurement, quantity and altitude, they're one of the so much awesome deposits moved via marine forces around the world and feature challenged researchers to unravel their enigmatic heritage. specifically, the query of ways their beneficial properties have been shaped (by typhoon waves or via tsunamis) is an issue of heated debate. The documentation is predicated at the authors' personal box learn, together with observations at the boulder delivery capability of six super powerful iciness storms within the 2013/14 season. Discussing the arguments released thus far and utilizing greater than one hundred thirty pictures for readability, the booklet addresses the nature, environment and impressive dimension of those boulders moved on land, evaluating them with the location alongside different uncovered coastlines of the world.

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Origin and Formation of Coastal Boulder Deposits at Galway Bay and the Aran Islands, Western Ireland

This booklet provides geomorphological and sedimentological points of Holocene boulder ridges alongside the beach of western eire (the Aran Islands and Galway Bay). Given those boulders’ measurement, quantity and altitude, they're one of the such a lot stunning deposits moved by means of marine forces around the globe and feature challenged researchers to unravel their enigmatic background.

Additional info for Origin and Formation of Coastal Boulder Deposits at Galway Bay and the Aran Islands, Western Ireland

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Boulders in the foreground have not been affected by recent storms even below +6 m MHW (Image credit D. Kelletat) (Fig. 53) are typical, as well as local outbreaks from platform faces (Fig. 52). The largest boulders which have been moved against gravitation and to inland by the winter storms 2013/14 are in the order of several tons in mass, where 10 tons seems to be the upper point of the scale for these events (Fig. 54). East of the ferry harbour of Doolin (now changed by a wide construction area) a lower coastline with a rocky platform inclining to the sea (southwards, to shallow water) and boulder accumulations with cobbles and pebbles incorporated extend for a few hundred metres into the bay between the Doolin area and the cliffs of Moher.

29), often with shells preserved. To the sea and about 50–80 m from MHW, large boulders of many tons (up to >20 tons) are organized in a ridge. Again, many of these boulders contain Hiatella borings or the resting places of sea urchins. Most of the boulders are well rounded, which is proof for their long time of movement within the surf belt. As they carry the tiny borings on their rounded surface, their movement within the surf belt must have been interrupted by quiet phases. Extreme event impacts finally moved the large boulders to inland and on the limestone pavement many metres above MHW.

3 tons among older ones, resting higher, moved wider to inland and having up to 20 times that weight (Image credit D. Kelletat) Fig. 2 tons on the bastion of the promontory just east of Black Fort at +22 m MHW. Lichen cover documents that this cliff top has been rarely affected. 59″W (Image credit D. 1 Observation on Recent Storm Wave Movement … 35 Fig. 22 Break out sites of the cliff top edge around +20 m above MHW: only a few boulders have been displaced on the platform, most of them have been washed into the sea (Image credit D.

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Origin and Formation of Coastal Boulder Deposits at Galway Bay and the Aran Islands, Western Ireland by Wibke Erdmann, Dieter Kelletat, Anja Scheffers, Simon K. Haslett


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