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I am going to build a website either in Angular 5-6 or in something similar to Drupal. I have experience building websites, but I am going to need to show massive amounts of data in a globe similar to google earth.

For example, this globe will need to show up to three million points where certain types of rocks have been found. I have all of the data, I'm just not familiar with any newer technologies to visualize this data in a web page.

My requirements are that the technology be something fairly new/cutting edge, and be able to render hundreds of thousands, or possibly a few million data points on a map in a reasonable amount of time (feel free to use your own definition of reasonable).

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You could create one or sevaral "heatmap" layers from your processed data. This layer then gets shown when the user has a birds-eye view (focuses on, say, the entire earth), but the "heatmap" eventually gets replaced with specific markers for the point data only when the user zoomed in and has chosen a smaller region of interest.

You could also use "MarkerClusters" for smaller patches of close-by points.

In sum there exist common GIS techniques for visualizing such type of data. So maybe ask this on the gis.stackexchange website (do not cross-post the same question, modify it a bit), maybe try these tags: "webmapping", "simplify", "smoothing", "kriging" ...

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    The heatmap when zoomed out, then individual points when zoomed in sounds exactly like what I want. Thanks for the link to the gis stack exchange, I didn't know that existed.
    – trueCamelType
    Oct 16, 2018 at 13:24
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    There are many, many ways to interpolate such a layer from point-data, which best to use depends on user requirements and data characteristics. I don't think there is a single "best way".
    – knb
    Oct 16, 2018 at 14:05

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