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This page contains the results of your search. It is divided into two sections. The first contains information about any tephra layers present at the site and the second part contains details about the source references and the date and time of the search.
|Site Type||Area||Latitude||Longitude||Grid reference||Altitude (m)|
|Terrestrial||Northern Ireland, County Londonderry||54.8869°N||6.5498°W||C931053||41|
|No||Name||Total Profile Depth (m)||Type||Correlated name1||Local name2||Tephra Depth (m)||Comments||Geochemical data||Ref|
|311||Dead Island Centre Core||4.00||russian corer|
|Hekla 1947 Tephra||0.070 - 0.080||*Cryptotephra||View Data||2225|
|Hekla 1510 Tephra||0.200 - 0.210||*Cryptotephra||View Data||2225|
|860 AD Layer part A Tephra||0.440 - 0.450||*Cryptotephra||View Data||2225|
|860 AD Layer part B Tephra||0.440 - 0.450||View Data||2225|
|GA4-85 Tephra||0.440 - 0.450||*Cryptotephra||View Data||2225|
|OMH-185 (Microlite) Tephra||2.190 - 2.200||*Cryptotephra||View Data||2225|
|Hekla 4 Tephra||3.750 - 3.760||*Cryptotephra||View Data||2225|
*Note that the Tephra layer depth of a cryptotephra does not indicate the thickness of the layer, as in a visible tephra tephra layer. The thickness indicates the spread of the tephra shards in the sediment or sometimes the top and bottom depths are the same (i.e. no apparent thickness).
1Correlated tephra name means that the tephra deposit has been correlated with a tephra horizon found at multiple sites (e.g. Hekla 4). Of course, these correlations could be reinterpreted and care needs to be taken.
2Local tephra name is the name given by the researchers for the tephra found at the site, this is often a mixture of a site code/name and the depth of the tephra. Not all tephra layers in Tephrabase have a local name, but more or being added. This is independent of any correlations to other tephra deposits.
The data on this page is from the following source(s). If you use this data please acknowledge the source of the data. The number preceeding each reference matches the Ref number on the data table above.
2225: Swindles, G. 2006 Reconstructions of Holocene climate change from peatland in the north of Ireland. Unpublished PhD thesis, Queen's Unversity, Belfast,
All of the data contained in this database is either published or donated. When using the data, acknowledgement must be made of the original source of the data and that the data was obtained from Tephrabase. See Copyright information.
This Tephrabase search was made on 17/9/2021 at 14:32:30 local time, Edinburgh, Scotland, UK.