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Earth Science Conservation Review progress

Of the 52 subject blocks defined, work has been completed on them all. To date, 76 sites with a geological interest have been designated as ASSIs (190 ASSIs have been declared in total).

It is anticipated that all sites identified by the ESCR will also be designated - a total of some 200 additional sites.

Examples of the types of site that have been selected as ESCR:

The majority of selected sites consist of rock outcrops. These give people an opportunity to see the various rock types that are, for the most part, hidden from view. Taken together, these sites describe the solid rock foundation of Northern Ireland. This type of site is generally easily managed. Quarries are very important offering as they do, a glimpse at rocks that would otherwise be buried.

Ancient Sink Holes - Enormous ancient sink holes in Carboniferous limestone. Quarries offer a view of features such as this which would otherwise be hidden
Sand Dunes - Sand dunes are dynamic but are also easily damaged by human activities Many coastal sites are very fragile, subject to impact from nature, through increasing storm frequency and possible future rises in sea-level, and human interference, particularly from removal of sand and stone from beaches, from recreational impacts and from engineering developments
Fossils are a fun way to get to know more about geology. Sites however can be fragile and must be managed carefully. Fortunately there are many sites rich in fossils, where repeated collecting poses no threat .picture of the White Rocks County Antrim - the most exposed coastline of Ulster White Limestone around the shores of Northern Ireland
Diatomite - Diatomite exposed in a ditch. Once widespread, there are now very few sites where significant quantities are intact

Once there were large deposits of diatomite along the north shore of Lough Neagh and around Lough Beg. Past cutting for use in the munitions industry especially, has greatly reduced its extent.

Diatomite and associated materials, are of importance for the information on past climate together with archaeological artifacts, that can be obtained from them.

Many of the landforms that can be seen in Northern Ireland, were formed by processes that operated in the past. This is particularly true of those related to past glacial activity.

Features such as eskers and glacial moraines are fossil landforms. They also are a valuable source of sand and gravel, used by the construction industry. It is important to strike a balance between the conservation of such sites whilst recognising the importance of this industry.

Eskers formed in sub-glacial streams, are a valuable source of sand and gravel. Once damaged by extraction, they will not be replaced unless the glaciers return
Caves - Decorated caves are a remarkable sight. Northern Ireland has many important cave systems, hosting dramatic stalagmites, stalagtites and other examples of flowstone. Such places are not only wonderful to look at, they also represent a unique record of past climate and environment for these areas. These records are contained within the calcite (from which the flowstones are comprised) and sediment deposits.