Don't trust anything they write about archaeology or geology until you check it for yourself in a reputable source. They get dates wrong, facts wrong, show that they don't actually know the material, etc. For instance, they ascribe the Scottish tsunami to a comet (one or more of 7) that they claim caused
>worldwide tsunami in 7640 BC. This in fact was caused by the second Storegga submarine landslide which occurred on the continental slope off the coast of western Norway, extending out into the Norwegian Basin and was almost certainly caused by an earthquake.
They write nonsense like "The earliest known buildings in the world are the megalithic structures of Europe. They are 1,000 years older than the cities of Sumer." But later they mention Catalhoyuk and state that it flourished between 7000 and 6000 BC. And of course there is Jericho, with walls and towers dating back to between 8000 and 7000 B.C.
"In North Wales, beds of sand and gravel with geologically recent sea shells can be found on mountains such as Moel Tryfan which is over 400 metres above sea level, showing that North Wales was briefly covered by sea water at a point in the recent past."
Obvious nonsense, but some people might believe it. They get it from a 1971 Creationist book, which in turn quotes (although we aren't provided with a quote) Geikie, A, Textbook of Geology', with no date. Sir Archibald Geikie's book cited here might be "A Class-Book of Geology", 3rd edition, MacMillan and Co.:
London, 1892 (p.179-180).
et's look at something a bit more recent:
The Need for Earth Heritage Conservation by the UK's Joint Nature Conservation Committee wrote about this:
"Moel Tryfan, Gwynedd. This is a historically important site, 400 metres above sea level, that consists of sand and gravel containing fossils of sea-shells. It was cited as evidence for the biblical flood by the Diluvialists. Subsequently it was interpreted as a glacial deposit carried from the sea bed by an Irish Sea ice sheet during the last ice age, about 23,000 years ago. This has a bearing on the dimensions of the last Irish Sea ice sheet, the extent to which it may have depressed the Earth's crust, and the degree of crustal 'rebound' after glaciation. It is a subject of ongoing research."
There are many more errors in the book. For instance, there were no 'grooved ware people', the Ainu are clearly not Caucasian (genetic evidence shows they are related to their neighbours), agriculture is older than Lomas and Knight state, their comments on Stonehenge seem to include elements they've made up, etc. A classic example of bad science.