Taiwan diqu chutu tongqi ji xiangguan yiliu chu lun.

A small number of copper-based artifacts from the Late Neolithic context are found in the northern, southwestern and southeastern coastal areas of Taiwan. The amount of copper-based artifacts found in early Metal Age, is much greater, but still restricted within Taiwan's northern and southeastern regions. Some of the discoveries from these early periods may have originated in mainland China, but there is no way to determine the specific sources of most of the objects. During the early Metal Age, foundry with stone molds, bronze objects, copper and iron slag, and other remains related to pyrotechnology are recovered from the Jiuxianglan site, in southeastern Taiwan. Objects cast in this foundry include axes/adzes, bell-shaped items, ear pendants, and anthropomorphic handles for edged weapons. Some of the product cast in the foundry, especially the last kind, also found their way into the northern coastal and southern mountainous regions of Taiwan. The stone mold technology used in the foundry is related to the bronze casting tradition found in mainland Southeast Asia. The raw materials used in the Jiuxianglan foundry were mainly derived from sources off the island, including trade commodities, items recovered from shipwrecks, and materials recycled from other copper-based objects and scrap metals, especially Chinese money. During Taiwan's historic period, metals derived from trade were the primary sources for raw materials used in casting activities. [ABSTRACT FROM AUTHOR]