This page is focused on the mineral allanite in all its forms and associations. The webpage is auto-generated by ScienceDirect using heuristic and machine-learning approaches to extract relevant information from our extensive collection of content. This compile this information on a topic-by-topic basis providing the reader both depth and breadth on a specific area of interest. Dates of sub-articles include 2021. Also see (more).
For example, the trace-element contents of granites and their volcanic equivalents, rhyolites are highly variable, more so than basalts, largely because of the effect of small amounts of accessory phases such as zircon, monazite, allanite and titanite both in their source regions and during granite crystallization. However, the abundances of critical trace elements can be used to discriminate granites formed in different tectonic environments, in a similar way to basalts. An example is shown in Figure 4.17, which illustrates that granites associated with subduction, either in volcanic arc or continental collision zones, have variable Rb abundances, but in general low (Y + Nb)—features which compare with basalts from the same tectonic regimes. Within-plate granites, by contrast have high Rb and high (Y + Nb), again similar to associated basaltic rocks.
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The Allanite Mineral Data webpage is available (here).
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