I'm looking for the title and author of this short story. The premise is that the main character invents a time machine, but when he travels to the past, there is nothing but void and when he travels to the future there is nothing but chaotic, unformed matter.
The conclusion of the time traveller is that the present is like a train on a single track using the unformed matter of the future to create existence in the present, and once the matter has been used it leaves nothing behind, hence the void of the past.
The story was in an anthology and was probably written in the 50s, 60s or 70s, possibly 80s, but not later. I can't remember if it was an anthology from just one author or several.
I have checked the Wikipedia page List of time travel works of fiction but the premise doesn't appear to be there.
I've also tried searching The Internet Speculative Fiction Database but with not much information to go on, my advanced searches were fruitless.
As always your help will be much appreciated.
I don't want to send people off on the wrong track but I have a vague feeling the story is either one of Michael Moorcock's or in an anthology he edited.
I have been through most of the titles in this advanced ISFDB search, but am no nearer to finding the answer. Unfortunately, a lot of titles do not contain a synopsis.
I have also asked this question at the Science Fiction and Fantasy Community