I looked it up and unsurprisingly there’s a whole Wikipedia page about this. Long story short, it takes decades for rock to become soily at all so likely a much longer time till it becomes as soily as what’s around it here.
Till has been in use in English since the 9th century; the earliest sense of the word was the same as the preposition to. It has been used as a conjunction meaning “until” since the 12th century. Until has been in use as both a preposition and a conjunction for almost as long. Both of these words are acceptable; you may send a text to your misbehaving child stating either “U R grounded till 4ever” or “U R grounded until 4ever.”
… you will probably wish to avoid ’till, use ’tiladvisedly, and use both until and tillfreely. And if you use till in writing and someone tells you that you have made an error, simply take the extra L off the end of the word and poke them in the eye with it.
In Iceland it’s pretty cold a lot of the year - not insanely, but colder than a lot of plants prefer. So the rock to soil conversion happens via moss.
While on tour there last year, our guide pointed out the ages of certain lava fields, and he noted that the existing lava fields around Grindavik were between 700 and 1300 years old. My photos from the area show that they’re about 60-70% rock, with moss covering the rest. I suspect if you scraped away the moss, you’ll find slightly crumbly rock underneath (But don’t do that - do not mess with the moss in iceland). I’m not sure how long it takes for the lava to be converted into soil, but I would guess it’s more on the scale of multiple thousands of years.
This page (up until the waterfall) has some good photos of a few lava fields and gives dates for the eruptions that created them. Meandering Wild - Lava and Moss
(The photos are at the bottom of each blurb, not the top - so Eldhraun is the one with the rounded rocks and moss at 350 years old, and not the black rocks, and Dimmuborgir, at 2300 years old, is the one with the treetops shown below the craggy rocks.)
Another banger from our tour guide was that (according to him) the locals say if you get lost in an Icelandic forest, just stand up. Which is… sorta true. They only tree of real quantity there is birch, and the tallest birch I saw was about 16ish feet (5ish meters). They do not grow heavily, so they’re a bit comedic and stringy. Decades old stands of them sort of look like 1-2 year old stands planted in warmer climates - without any ground cover, of course, because while grass will grow, the usual complement of weeds, vines, and what-not does not.
It grows so slowly that disturbing it undoes decades of growth, and since it takes hundreds of years to convert rock to soil, messing with the moss is well, first, just upsetting the natural beauty, but also robs future generations of the land for just a few moments of “huh, neat.” Our tour guide was pretty reverent when he talked about the role that moss plays.
Also they’ll fine you and maybe bar you from returning.
On that note of a million questions, the soil looks pretty soily; How long would it take that new lava rock to become as soily on top?
I looked it up and unsurprisingly there’s a whole Wikipedia page about this. Long story short, it takes decades for rock to become soily at all so likely a much longer time till it becomes as soily as what’s around it here.
You can’t till it 'til much later.
Did I use the wrong word there? I always assumed till and until were synonyms
You’re good, it was just a funny
Till = OG
You’re right, they’re just making a joke, as till also refers to how farmers prepare soil for planting crops.
Suddenly thinking about how the race to sustainably create more soil will probably be a theme for scientific research in the near future.
Desertification is scary!
Lava rock tends to be very porous and “crumbly” though right? I would think it turns to soil faster than most other types of rock.
No, it’s someone who loves feet.
^ when you’re done ruining Twitter for the day.
In Iceland it’s pretty cold a lot of the year - not insanely, but colder than a lot of plants prefer. So the rock to soil conversion happens via moss.
While on tour there last year, our guide pointed out the ages of certain lava fields, and he noted that the existing lava fields around Grindavik were between 700 and 1300 years old. My photos from the area show that they’re about 60-70% rock, with moss covering the rest. I suspect if you scraped away the moss, you’ll find slightly crumbly rock underneath (But don’t do that - do not mess with the moss in iceland). I’m not sure how long it takes for the lava to be converted into soil, but I would guess it’s more on the scale of multiple thousands of years.
This page (up until the waterfall) has some good photos of a few lava fields and gives dates for the eruptions that created them. Meandering Wild - Lava and Moss
(The photos are at the bottom of each blurb, not the top - so Eldhraun is the one with the rounded rocks and moss at 350 years old, and not the black rocks, and Dimmuborgir, at 2300 years old, is the one with the treetops shown below the craggy rocks.)
Another banger from our tour guide was that (according to him) the locals say if you get lost in an Icelandic forest, just stand up. Which is… sorta true. They only tree of real quantity there is birch, and the tallest birch I saw was about 16ish feet (5ish meters). They do not grow heavily, so they’re a bit comedic and stringy. Decades old stands of them sort of look like 1-2 year old stands planted in warmer climates - without any ground cover, of course, because while grass will grow, the usual complement of weeds, vines, and what-not does not.
Why not mess with the moss?
It grows so slowly that disturbing it undoes decades of growth, and since it takes hundreds of years to convert rock to soil, messing with the moss is well, first, just upsetting the natural beauty, but also robs future generations of the land for just a few moments of “huh, neat.” Our tour guide was pretty reverent when he talked about the role that moss plays.
Also they’ll fine you and maybe bar you from returning.
Thanks! I’m in the PNW and moss grows heckin fast over here. We have a constant battle against it in our driveway, and on our roof.