Sparse File Compression Zones vs Sparse Ranges

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I am new to sparse files and wondering if compression zones and sparse ranges are the same thing.

I recently learned the term compression units from here: http://www.flexhex.com/docs/articles/sparse-files.phtml

When it comes to a compressed or a sparse file, NTFS divides the file into chunks called compression units.

However in this example they have sparse ranges: https://code.msdn.microsoft.com/windowsdesktop/CSSparseFile-6e26dc97

SetSparseRange...The minimum sparse size is 64KB.

From reading elsewhere I see that NTFS disk clusters are 4kb in size and windows defines a compression unit as a collection of 16 units each 4kb... 16 * 4 == 64kb so are they the same?

I can how in Microsoft NT world they have a different term (compression units) than others (sparse ranges) but I'm not sure if I have this correct.

I am having a tough time finding thorough documentation so if you know of any resources I will gladly look into them.

TIA

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