Metasomatism of magmatic and metamorphic rocks of the Wawa-Abitibi and Western Wabigoon Subprovinces and Kapuskasing structure, Superior Province, Canada: Implications for Neoarchean continent evolution and gold deposition

交代作用，即岩石与流体相互作用的化学转化，最近得到了科学界更多的关注，因为越来越多的地球科学家意识到，自至少40亿年前以来，它就是一个重要的过程，参与了地壳的形成和矿床的形成。尽管交代作用在所有岩石类型中都已被认识到，并有助于某些类型的金属矿床的成因，但人们对它的了解仍然很少。例如，虽然已经详细研究了加拿大地盾建造过程中变质作用和岩浆作用的影响，但从未充分评估交代作用对这些岩石演化的影响。在这里，我建议研究与加拿大安大略省和魁北克省的瓦瓦-阿比提比地体、瓦比贡地体和卡普斯卡辛构造内的加拿大地盾某些部分的岩浆演化有关的交代作用。

Metasomatism, or the chemical transformation of rocks by interaction with fluids, has recently been getting more attention from the scientific community, as more Earth scientists realize it is an important process which has been involved in the genesis of the Earth’s crust as well as in the formation of ore deposits, since at least 4 billion years ago. Although metasomatism has been recognized in all rock types, and is instrumental for the genesis of certain types of metal deposits, it remains poorly understood. For example, while the effects of metamorphism and magmatism during the construction of the Canadian Shield have been studied in detail, the effect of metasomatism on the evolution of these rocks was never fully assessed. Here, I propose to study the metasomatism associated with the magmatic evolution of certain parts of the Canadian Shield in Ontario and Quebec, within the Wawa-Abitibi terrane, the Wabigoon terrane, and the Kapuskasing structure.