If black tar is adhering to the vinyl it is almost a 100 asbestos containing fiber product.
What does asbestos sheet flooring look like.
Live link just below.
Rarer asbestos containing flooring is older ceramic floor tile grout and adhesive.
Below is an examples of plaster containing asbestos which looks much like non asbestos plaster.
For a more accurate guess there is a bit of additional information you can provide or ask yourself.
Always test for asbestos fibers before removing any older vinyl sheeting.
What does asbestos sheet flooring look like.
A vinyl sheet flooring that looks like the above has a high chance of asbestos.
Asbestos ceiling tiles are also comonly used.
Whats people lookup in this blog.
See des this flooring contain asbestos.
Asbestos containing materials can also appear under floors in the form of subfloor insulation or felt.
Your floor tiles look like a burgandy or drak brown colored asp.
Asbestos ceilings can be found in many forms which include asbestos fibre cement sheet fibro vermiculite spray applied ceilings.
Asbestos was added to plaster and drywall products for a number of reasons ranging from fire proofing to noise absorption.