GeoMôn UNESCO Global Geopark is a
Geopark
A geopark is a protected area with internationally significant geology within which sustainable development is sought and which includes tourism, conservation, education and research concerning not just geology but other relevant sciences.
In 20 ...
covering the entire island of
Anglesey
Anglesey (; cy, (Ynys) Môn ) is an island off the north-west coast of Wales. It forms a principal area known as the Isle of Anglesey, that includes Holy Island across the narrow Cymyran Strait and some islets and skerries. Anglesey island ...
in north
Wales
Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...
. It was admitted to the
European Geoparks Network
The European Geoparks Network (EGN) functions as the regional organization of the Global Geoparks Network (GGN) and the UNESCO International Geosciences and Geoparks Programme (UNESCO-IGGP). Its main objective is to ensure cooperation between geop ...
and to the
UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It ...
-assisted
Global Network of National Geoparks
UNESCO Global Geoparks (UGGp) are geoparks certified by the UNESCO Global Geoparks Council as meeting all the requirements for belonging to the Global Geoparks Network (GGN). The GGN is both a network of geoparks and the agency of the United Nati ...
in May 2009. It is the second Geopark to be designated in Wales, the seventh within the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
and the thirty-third in Europe. The UNESCO Geopark designation reflects the
diversity of the island's geology, which encompasses solid rocks from the
Precambrian
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the ...
to the
Neogene
The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
with some
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...
sediments and extensive
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...
glaciation features from the
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ...
period. GeoMôn covers 720 square kilometres and has 125 miles of coastal walks.
The Isle of Anglesey lies off the north coast of Wales, UK. It is known as Ynys Môn in Welsh. Around 67,000 people live on the island. The local culture is very distinctive, with around 60% of the population using Welsh as their first language.
The island is renowned for its diverse tectonic geology.
South Stack
South Stack ( cy, Ynys Lawd) is an island situated just off Holy Island on the northwest coast of Anglesey, Wales.
Geology
South Stack is an island known as a sea stack. It was formed by the wave erosion of sedimentary rocks that once conne ...
with its world class
folding
Fold, folding or foldable may refer to:
Arts, entertainment, and media
* ''Fold'' (album), the debut release by Australian rock band Epicure
*Fold (poker), in the game of poker, to discard one's hand and forfeit interest in the current pot
*Above ...
and
faulting
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic ...
has been a controversial site for many years, having been first identified as the oldest
Precambrian
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the ...
rock then the youngest and now said to be from the
Cambrian
The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million ...
period. It is a mecca for students and schools who come here to study folding and faulting as well as examining the evidence for the birth of the Atlantic.
Llanddwyn Island
Ynys Llanddwyn (also known as Llanddwyn Island) is a small tidal island off the west coast of Anglesey (Welsh: Ynys Môn), northwest Wales. The nearest settlement is the village of Newborough.
Geology and geography
The island is of geological ...
on the west Anglesey coast is a small, but complete
oceanic plate
Oceanic crust is the uppermost layer of the oceanic portion of the tectonic plates. It is composed of the upper oceanic crust, with pillow lavas and a dike complex, and the lower oceanic crust, composed of troctolite, gabbro and ultramafic cumu ...
, with the
pillow lava
Pillow lavas are lavas that contain characteristic pillow-shaped structures that are attributed to the extrusion of the lava underwater, or ''subaqueous extrusion''. Pillow lavas in volcanic rock are characterized by thick sequences of disconti ...
s at its eastern end created at a Precambrian
constructive plate margin. The plate interior on the northern coast is composed of
mudstone
Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. Mudstone is distinguished from '' shale'' by its lack of fissility (parallel layering).Blatt, H., and R.J. Tracy, 1996, ''Petrology. ...
s and
sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks.
Most sandstone is composed of quartz or feldspar (both silicates) ...
s, some containing ‘
dropstone
Dropstones are isolated fragments of rock found within finer-grained water-deposited sedimentary rocks or pyroclastic beds. They range in size from small pebbles to boulders. The critical distinguishing feature is that there is evidence that the ...
s’, the remnants of the
Gaskiers Ice Age that occurred at the end of Precambrian times. Anglesey is the type locality for a rock type christened "
mélange
In geology, a mélange is a large-scale breccia, a mappable body of rock characterized by a lack of continuous bedding and the inclusion of fragments of rock of all sizes, contained in a fine-grained deformed matrix. The mélange typically cons ...
" by
Edward Greenly
Edward Greenly (3 December 1861 – 4 March 1951) was an English geologist known for his a detailed geological survey of the island of Anglesey. ''The Geology of Anglesey'' was published in two volumes in 1919 and followed by a one-inch geologic ...
when he first mapped the geology of Anglesey in the early years of the twentieth century.
GeoMon publishes a series of local trails to guide the visitor around the coastal areas of the island served by the 125 mile long
coastal path
A coastal path (or a littoral path) is a trail along a sea shore or a lake shore for pedestrians, and sometimes for cyclists or equestrians.
Some coastal paths were originally created for use by customs or coastguard officials looking out for s ...
. The trail at
Beaumaris
Beaumaris ( ; cy, Biwmares ) is a town and community on the Isle of Anglesey in Wales, of which it is the former county town of Anglesey. It is located at the eastern entrance to the Menai Strait, the tidal waterway separating Anglesey from ...
illustrates the use of rocks in the building of the 13th century castle, roofs and roads as well as more ornate carvings on wealthier buildings. The castle built by
King Edward I
Edward I (17/18 June 1239 – 7 July 1307), also known as Edward Longshanks and the Hammer of the Scots, was King of England and Lord of Ireland from 1272 to 1307. Concurrently, he ruled the duchies of Aquitaine and Gascony as a vassa ...
was intended to ‘tame’ the local Welsh people and keep them in order. It is part of the
Castles and Town Walls of King Edward in Gwynedd
The Castles and Town Walls of King Edward in Gwynedd is a UNESCO-designated World Heritage Site located in Gwynedd, Wales. It includes the castles of Beaumaris and Harlech and the castles and town walls of Caernarfon and Conwy. UNESCO considers t ...
World Heritage Site
A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for h ...
.
Oriel Ynys Môn is the municipal art gallery and museum dedicated to local artists and crafts. Anglesey’s two most important artists have exhibitions there. Firstly, there is an exhibition of the work of
Charles Tunnicliffe
Charles Frederick Tunnicliffe, OBE, RA (1 December 1901 – 7 February 1979) was an internationally renowned naturalistic painter of British birds and other wildlife. He spent most of his working life on the Isle of Anglesey. He is popularly ...
, the wildlife artist and then Sir
Kyffin Williams
Sir John Kyffin Williams, (9 May 1918 – 1 September 2006) was a Welsh landscape painter who lived at Pwllfanogl, Llanfairpwll, on the Island of Anglesey. Williams is widely regarded as the defining artist of Wales during the 20th century.
Pe ...
R.A., whose work is shown in a new gallery dedicated to him. He was a founder member of the Geopark and its first patron. His great uncle,
Sir Andrew Ramsay, was the second Director General of the
British Geological Survey
The British Geological Survey (BGS) is a partly publicly funded body which aims to advance geoscientific knowledge of the United Kingdom landmass and its continental shelf by means of systematic surveying, monitoring and research.
The BGS h ...
of Great Britain and a ‘Father’ of Welsh Geology; he died in Beaumaris and is buried in the churchyard at
Llansadwrn
Llansadwrn (; ; ) is a small village and community in Carmarthenshire, Wales.
It is located in the countryside above the valley of the River Tywi, about halfway between Llandovery (Welsh: Llanymddyfri) to the north-east, and Llandeilo to the ...
, under a glacial erratic, a boulder of
Shap Granite.
Originally
geoconservation Geoconservation is the practice of recognising, protecting and managing sites and landscapes which have value for their geology or geomorphology. Geoconservation is carried out by a wide range of organisations from local geological societies to gove ...
on Anglesey was administered by the
Gwynedd
Gwynedd (; ) is a county and preserved county (latter with differing boundaries; includes the Isle of Anglesey) in the north-west of Wales. It shares borders with Powys, Conwy County Borough, Denbighshire, Anglesey over the Menai Strait, and C ...
and Mon
RIGS group, but a decision was taken to apply for Geopark membership. GeoMôn is administered by GeoMôn-Anglesey Geopark Limited, a company registered at
Companies House
Companies House is the executive agency of the company registrars of the United Kingdom, falling under the remit of the Department for Business, Energy and Industrial Strategy. All forms of companies (as permitted by the Companies Act) are i ...
, and a registered charity.
GeoMôn produces books on the geology of the island as well as leaflets detailing a number of self-guided trails. There is a Geopark visitor centre open from 10am to 4pm every day except Monday, at the Watch House in
Porth Amlwch.
Porth Amlwch was created mainly to facilitate the export of
copper ore
Following is a list of minerals that serve as copper ores in the copper mining
Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper consists of a series of physical and electrochemical proces ...
from the mines on
Parys Mountain
Parys Mountain ( cy, Mynydd Parys) is located south of the town of Amlwch in north east Anglesey, Wales. It is the site of a large copper mine that was extensively exploited in the late 18th century. Parys Mountain is a mountain in name only, bei ...
. The Watch House was originally the waiting place for the pilots guiding sailing ships in and out of the tiny harbour.
IUGS geological heritage site
In respect of the site having 'spectacular, accessible and well-preserved exposures of late Neoproterozoic-Cambrian mélange with more than 200 years of study', the
International Union of Geological Sciences
The International Union of Geological Sciences (IUGS) is an international non-governmental organization devoted to international cooperation in the field of geology.
About
The IUGS was founded in 1961 and is a Scientific Union member of the Inte ...
(IUGS) included the 'Ynys Llanddwyn late Neoproterozoic-Cambrian Mélange' in its assemblage of 100 'geological heritage sites' around the world in a listing published in October 2022. The organisation defines an IUGS Geological Heritage Site as 'a key place with geological elements and/or processes of international scientific relevance, used as a reference, and/or with a substantial contribution to the development of geological sciences through history.'
References
External links
GeoMôn- official site
{{DEFAULTSORT:Geomon
Geoparks in Wales
Global Geoparks Network members
Parks in Anglesey
Geology of Anglesey
First 100 IUGS Geological Heritage Sites