Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, [1] is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin.

The most common approach to extracting metal-bearing ore from a porphyry copper deposit is by open-pit mining, although such mines also typically include some underground activities. 从斑岩含铜矿床开采含金属的矿石，最主要的方式是露天开采，尽管这种矿床常会伴随一些地下的地质活动。

2022年7月26日 · Open-pit mining is one of several non-tunnel approaches to mining that gives miners ready access to minerals and stone near Earth’s surface. Explosives help create massive, canyon-like holes....

Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground. Open-pit mining is the most common method used throughout the world for mineral mining and does not require extractive methods or tunnels.

Open-pit mining is a common way to extract valuable minerals and materials from the Earth’s surface. It involves digging a large pit in the ground to reach the minerals buried below. While this method is effective for getting resources like copper, gold, iron, and coal, it can have some serious effects on the environment and nearby communities.

2023年11月1日 · Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground. This surface mining technique is used when mineral or ore deposits are found relatively close to the surface.

OPEN-PIT翻译：露天挖掘的。 了解更多。

2024年12月12日 · Open-pit mining is a surface mining method used to extract ore from large, shallow deposits. Unlike underground mining, which requires digging tunnels, open-pit mining involves creating a wide, terraced pit to remove ore and waste materials directly from the surface.

2024年4月12日 · Open pit mining, also known as open-cast or open-cut mining, is a surface mining technique used to extract minerals and other geological materials from the earth. Unlike underground mining methods, open pit mining involves removing surface vegetation, soil, and rock (collectively called overburden ) to expose the ore body.

2024年12月19日 · Open pit mining is one of the leading methods in the world of mining. Unlike underground mining, which requires tunneling into the earth, open pit mining creates large holes or pits on the earth’s surface to expose minerals that lie close to it.