- Volcanoes directly or indirectly produce or host deposits of aluminum, diamonds, gold, nickel, lead, zinc, and copper.了解详细信息：Volcanoes directly or indirectly produce or host deposits of aluminum, diamonds, gold, nickel, lead, zinc, and copper.volcano.oregonstate.edu/volcanic-mineralsVolcanic eruptions produce three types of materials: gas, lava, and fragmented debris called tephra. Magma contains gas.geo.libretexts.org/Bookshelves/Geology/Physical_…
Once the lava has erupted, it cools and solidifies into rock:
- Basalt magma often forms shield volcanoes.
- Andesite magma often forms cone volcanoes.
- Rhyolite magma often forms calderas. Depending on how much gas the magma contains, it can also form cone volcanoes.
www.sciencelearn.org.nz/resources/650-types-of-v… - 其他用户还问了以下问题
Oregon State University - Volcano World
Volcanic fluids and hot seawater move through the volcanic rocks and leach metals. The deposits are associated with lava flows, breccia, water-deposited tuffs, cherts, sulfates, and limestones. VMS deposits are usually associated with quartz, anhydrite, gypsum, and barite.
来自volcano.oregonstate.edu的其他内容Volcanic Environments & Their Mineral & Ore Deposits - AZoMining
在azomining.com上查看更多信息Volcanoes are created via three main tectonic processes. As tectonic plates move, shift, and bump against each other, one plate is subducted under the other; forming a subduction zone. This is why the majority of the world’s volcanoes are formed along the boundaries of the Earth’s tectonic plates. In the subduction zone, the cr…- 预计阅读时间：5 分钟
Volcanoes/Volcanic minerals - Wikiversity
Volcanic sources that have a low silica concentration are more likely to produce feldspathoid-containing rocks than feldspar-containing rocks. Feldspathoid volcanic rocks occur in "a suite …
Mineral clues to past volcanism | Science - AAAS
2016年4月22日 · Based on an analysis of ~120,000 zircon minerals, McKenzie et al. argue that changes in volcanic activity along continent-ocean tectonic plate boundaries—as seen today in the Andes—are a key driver of climate change …
Minerals Lesson #11 | Volcano World
Some minerals are so hard that they can scratch steel while other minerals are so soft that they feel powdery and can be scratched easily by a fingernail. There are many ways that scientists …
11.2: Materials Produced by Volcanic …
2024年8月22日 · Volcanic ash consists of small mineral grains and glass. Figure 11.16 shows volcanic ash on three scales: in the upper left is ash from the 2010 eruption of Eyjafjallajökull …
Base Metals | Volcano World | Oregon State University
The deposits form in deep ocean water by the precipitation of sulfide minerals released by submarine volcanoes. Volcanic fluids and hot seawater move through the volcanic rocks and leach metals. The deposits are associated with lava …
Volcanology and mineral deposits | U.S. Geological Survey
In contrast, old volcanic regions, which host many of the world's major hydrothermal-vein, porphyry, and massive-sulfide ore deposits, have been studied mainly by economic geologists, …
Nature's refineries — Metals and metalloids in arc volcanoes
2013年10月1日 · Extensive monitoring of active volcanoes has provided a comprehensive database of fumarole gas compositions in terms of both the major gas components (CO 2, SO …
Mineralochemical Mechanism for the Formation of Salt Volcanoes: …
2022年12月12日 · The salt-volcano of Dallol is a transient evidence of how mineralochemical processes leading to the generation of pressurized fluids that eventually reach the surface can …
