The Lost Tin Mining Landscapes of Southeast Asia: An Isotopic Approach for Locating Pre-Modern Sources of Tin in Malaysia

Jesse De Nichilo

Exports of tin from the Malay Peninsula were key to the regional production of industrial materials during the great expansion of maritime trade in Southeast Asia from the 10th-16th centuries CE. A source of tin during this period has not been definitively located however as successive phases of ancient extraction and intensive modern commercial mining have largely erased earlier mining landscapes, severely limiting the ability of archaeologists to study the scale and character of tin mining activities in the region. In this presentation, I argue that tin isotope analysis offers a microarchaeological pathway for addressing this problem by linking tin ingots recovered from 10th to 16th century Southeast Asian shipwrecks with ore bodies on land, thereby reconnecting maritime evidence of exchange with terrestrial zones of extraction. Focusing on the Kinta Valley in Perak, Malaysia, I explore how highly spatially resolved geochemical signatures can be used to reconstruct effaced mining landscapes and to identify patterns of production, movement, and regional connectivity that are otherwise archaeologically invisible. I also reflect on the methodological limits of this approach, including ore-source overlap, sampling constraints, and the challenges of integrating isotope data with historical and archaeological evidence. By bridging shipwreck assemblages, terrestrial geology, and geochemical provenance, I will attempt to show how microarchaeological methods can illuminate extractive landscapes that have been materially erased but remained central to Southeast Asia's long-term participation in regional and global exchange networks.