Mark Wilson July 1st, 2009
KURESSAARE, SAAREMAA ISLAND, ESTONIA–Like the Iceland team, our first full field day in Estonia was spent in reconnaissance on the islands of Muhu and Saaremaa. We visited an abandoned quarry just north of Koguva to examine Lower Silurian (Wenlock) dolomitic mud mounds and limestones near Koguva, and then went to the Uugu Cliff which exposes a similar sequence but a little younger within the Silurian. Caves are found high in the cliff which were cut by waves of Ancylus Lake, a freshwater precursor of the Baltic Sea between 9500 and 8000 BCE. There are also trenches on the top of the bluffs dug by Tsarist Russian soldiers during World War I.
Later in the afternoon we collected Wenlockian fossils at the seaside Paramaja Cliff which had been weathered out of their rock matrices by the waves. We found a good collection of rhynchonellid brachiopods, strophomenid brachiopods, rugose corals, tabulate corals, encrinurid trilobites, crinoid stems, nautiloids, and cornulitids. (Like music, isn’t it?)
Tomorrow we continue our survey of Silurian localities. The weather could not be better. (It sure beats sleet in Svalbard and mosquitoes in Russia, I must say!) Rob’s luggage is scheduled to arrive at our Kuressaare hotel in the afternoon, so we’ll finally have our full kit.