Geology Jenga

radiocarbon dating

Sharing my new discovery – aquatic plants are (sometimes) suitable for radiocarbon dating!

Sharing my new discovery – aquatic plants are (sometimes) suitable for radiocarbon dating!

Radiocarbon dating is probably the most well-known chronological technique regularly employed by archaeologists, geomorphologists and researchers analysing sediment cores. Palaeolimnologists (those who study lake sediments) hoping to determine the age of a sample extracted from a long sediment core traditionally seek terrestrial plant macrofossils (fragments of organic matter visible without a mic ...[Read More]

Moraines in Costa Rica? Really?

Moraines in Costa Rica? Really?

During a recent trip to Costa Rica in May, I had a conversation with some family and friends in which I uttered those words: “Moraines in Costa Rica? Really?” as they were describing a trek they’d undertaken earlier this year to the summit of Cerro Chirripó. This is the highest peak in the country (3819 m a.s.l.), part of the Cordillera de Talamanca (9°30′ N, 83°30′ W) in southern central Costa Ri ...[Read More]