The phrase "ample indications of a" is correct and usable in written English.
It can be used when discussing evidence or signs that suggest something is true or likely to happen.
Example: "There are ample indications of a significant increase in consumer demand for eco-friendly products this year."
Alternatives: "plenty of evidence of a" or "sufficient signs of a".
Spotting versatile players like Richard Alan Holmes and Stephen Quint, who regularly embody a variety of roles from the Savoyard canon, is ample indication of a merry romp ahead.
The sheer volume of Twitter and Facebook posts following the PS4 Pro's launch that specifically bemoaned or expressed incredulity at the lack of a UHD BD support is ample indication of just how many potential customers Sony's decision might have cost it.
There is ample indication of the former type, even if the regions from which specific materials were derived are not easy to pinpoint.
His trip over the summer to the UK, Israel and Poland provided ample indication of Mr. Romney's ability to put his foot in his mouth with allies.
Mr. Brodsky said there were ample indications this time that the shutdown was an avoidable consequence of economic decisions by the company.
Although there are ample indications that Mars had surface water billions of years ago — in some cases, evidence suggests that water may have flowed in some gullies and channels within the last few millions of years or later — conditions today, including an atmosphere 1percentt as dense as Earth's, do not allow for liquid water, scientists said.
#Tamam provides ample indication that even in a climate of heightened oppression and political intimidation, resistance persists.
There are ample indications that he may fail.
Ample evidence of very high returns to investments in agricultural and food R&D gives strong indications of a persistent underinvestment worldwide.
I would submit that the volatility of every aspect of the Facebook platform gave ample indication that it was not a rock on which to build.
