Why are we not finding and studying varves in the other 4 lakes if the conditions are present to such a great degree to form varves in this local geography?
You quote me asking you why you donât try to look up answers yourself, then proceed to ask me, without a hint of irony, a question that is easily answered by a simple google search?
I already posted one, in the comment that you replied to in your previous comment. Amazing that you apparently didnât even bother to glance at it. When youâre this lazy, people arenât exactly eager to spend their time searching for references for you.
Anybody else? I asked a specific question: why are we not studying varves in the other surrounding 4 lakes? The link supplied does not answer my question.
You actually have to click on the link and read the info there.
The topography and surrounding environment of Lake Suigetsu
Topography and surrounding environment have a strong influence on varve formation. Lake Suigetsu has several conditions that have allowed the pairs of stripes to accumulate without disturbance and form each year. The four main conditions are listed below. As lakes with such favorable conditions for varve formation are a rarity around the globe, it is fittingly known as the miracle lake.
1 A topography with no large feeding rivers
The lakebed is left undisturbed by the inflow of soil and stones, and large amounts of water such as from heavy rain, due to the lakeâs depth and the absence of any large rivers directly feeding it.
2 A topography surrounded by mountains
The lake water is kept from being stirred up as the surrounding mountains block winds and prevent waves from building up.
3 An absence of life at the lake bottom
As the lake water is not stirred up, a layer that lacks oxygen forms in the deep parts. In other words, living things are unable to exist at the bottom of Lake Suigetsu, meaning that the varves are not disturbed by them.
4 The lake is not filled up
Lakes in general become filled up with sediment over time, such as with soil and sand from upstream. Lake Suigetsu, however, has continued to subside due to the influence from surrounding faults for a long time. This has resulted in the lake not filling up with sediment, instead allowing a steady accumulation of sediment on the lakebed.
Thereâs a photo of Lake Mikata with this caption:
âAn aerial photograph after heavy rain. The brown-looking Lake Mikata has had sand and mud washed into it, but the muddy water has not flowed into Lake Suigetsu pictured above it. A photographic record showing the favorable conditions for varve formation. (Photo provided by Fukui Shimbun)â
Until it can be shown why Lake Suigetsu alone contains varves and not the surrounding 4 lakes, research into varves in Lake S should be considered ongoing. And in that ongoing research, the idea of varve periodicity should still be up in the air. It cannot be said with certainty [at this premature point] that the varves were laid down annually.
Good. Thank you. That is certainly a start, (though not necessarily conclusive about why Lake M should not have any varves). Now how about the other lakes?
Before asking why Lake Suigetsu alone contains varves, you should first ask whether Lake Suigetsu alone contains varves. Lake Hiruga also contains varves. This renders your question moot.
How about you just leave this place? Youâre clearly not interested in doing ANY work to find anything out. Your unbelievably lazy and entitled attitude is a hindrance to meaningful communication.
Remind me, why weâre you incapable of finding his quote on your own? I linked the PDF and even posted a screenshot of the very page containing that passage to emphasise it!