After $100 million had been spent on further exploration and development, the find led to commercial production in 1967.

It is our task to put on record what we have seen, and to leave the further exploration to others.

I would have to give in to it before further explorations.

Following these discoveries there was little interest in further exploration.

Further exploration was done and a second chamber discovered in 1792.

The same approach is being taken in planning further exploration of Mars.

Indeed, the relationship between the two requires further exploration in order to better understand the potential effect of social media on newspapers.

But the offer of a trial under Scottish law is worth further exploration.

But there was a closed look about him, warning her off from any further exploration of that.

After further exploration, the group broke through a wall into a series of chambers.