Mendenhall Glacier

The blue ice of Mendenhall has produced more than it’s fair share of red faces.

The Mendenhall Glacier in Alaska is retreating.

Mendenhall Glacier (also Sitaantaagu) is a glacier about 13.6 miles (21.9 km) long located in Mendenhall Valley, about 12 miles (19 km) from downtown Juneau in the southeast area of the U.S. state of Alaska.

https://en.wikipedia.org/wiki/Mendenhall_Glacier

It’s retreated 2½ miles in about 500 years.

The Mendenhall receded 2.5 miles since circa 1500 due to a combination of natural and man-made climate change.

https://en.wikipedia.org/wiki/Mendenhall_Glacier

And the retreat is exposing a shattered forest.

Stumps and logs have been popping out from under southern Alaska’s Mendenhall Glacier — a 36.8-square-mile (95.3 square kilometers) river of ice flowing into a lake near Juneau — for nearly the past 50 years.

Ancient Forest Thaws From Melting Glacial Tomb
Live Science – Laura Poppick – 20 Sept 2013

https://www.livescience.com/39819-ancient-forest-thaws.html

The Mendenhall Glacier’s recession is unveiling the remains of ancient forests that have remained frozen beneath the ice for up to 2,350 years.

Ancient trees emerge from frozen forest ‘tomb’
Juneau Empire – Mary Catharine Martin – 12 Sept 2013

https://web.archive.org/web/20160201200006/https://www.juneauempire.com/outdoors/2013-09-13/ancient-trees-emerge-frozen-forest-tomb

At this juncture:
Aficionados of mainstream geography will no doubt appreciate the Mendenhall Glacier has singularly failed to attain the necessary textbook standard in valley scouring.

Glaciated valleys are formed when a glacier travels across and down a slope, carving the valley by the action of scouring.

When the ice recedes or thaws, the valley remains, often littered with small boulders that were transported within the ice, called glacial till or glacial erratic.

https://en.wikipedia.org/wiki/U-shaped_valley

The youngest of the shattered trees are between 1,400 and 1,200 years old.

The most recent stumps she’s dated emerging from the Mendenhall are between 1,400 and 1,200 years old.

The oldest she’s tested are around 2,350 years old. She’s also dated some at around 1,870 to 2,000 years old.

Ancient trees emerge from frozen forest ‘tomb’
Juneau Empire – Mary Catharine Martin – 12 Sept 2013

https://web.archive.org/web/20160201200006/https://www.juneauempire.com/outdoors/2013-09-13/ancient-trees-emerge-frozen-forest-tomb

In other words:

1) The Mendenhall forest was smothered in ice sometime after 800 CE.

2) The Mendenhall dating is consistent with the age of the Greenland Ice Sheet.

Projecting the Colle Gnifetti trend line down to 3,000 metres suggests the bottom ice in the GRIP ice core is about 1,200 years old.

See: https://malagabay.wordpress.com/2018/12/10/getting-to-grips-with-greenland/

3) The Mendenhall dating is consistent with the age of Iceland’s ice.

Overall, the models suggest Iceland’s ice is somewhere between 1,100 and 1,400 years old.

See: https://malagabay.wordpress.com/2018/11/23/icelands-ice/

4) The Mendenhall dating coincides with the retreat of the Gangotri Glacier.

● The retreat of the Gangotri Glacier began in 850 CE

See: https://malagabay.wordpress.com/2018/11/05/the-retreat-of-the-gangotri-glacier/

At this juncture:

Aficionados of gradualism may experience apoplexy reconciling the data.

Mendenhall Glacier  58° 29′45″ N 134° 31′56″W
Gangotri   Glacier  30° 50′    N  79° 10′   E

On the other hand:

Aficionados of catastrophism may enjoy seeing gradualism slip slidin’ away.

God only knows
God makes his plan
The information’s unavailable
To the mortal man
We work our jobs
Collect our pay
Believe we’re gliding down the highway
When in fact we’re slip slidin’ away

Slip Slidin’ Away – Paul Simon – Universal Music Publishing Group

Hat Tip
Joe Bastardi discusses the shattered forests of Mendenhall at 4:00 in the video.

https://www.weatherbell.com/videos/encoded/1560030490_1.mp4

Joe Bastardi – The Saturday Summary – 8 June 2019
WeatherBELL Analytics

https://www.weatherbell.com/

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Gallery | This entry was posted in Arabian Horizon, Atmospheric Science, Catastrophism, Geology, Glaciology, Greenland, Heinsohn Horizon, History, Iceland, Science. Bookmark the permalink.

12 Responses to Mendenhall Glacier

  1. So glaciers don’t scour out their valleys, and hence the vast deposits of loess and glacial drift have to be linked to other physical process(es), EM machining to form the valleys, and volcanic eruptions, all triggered from perturbations within the ionosphere.

  2. Nice find, interesting subject; interesting study. I look for correlations and there are some.

    This is based on the enigmatic Eddy cycle. It is presumed that the dating of the trees is when they died. So, the oldest at 2350yrs is at ~400bce, just ahead of the Eddy root, a cold period. The youngest trees ca. 1300yrs is the next Eddy root at ~650bce. Both are cold periods (next root is the Little Ice age).

    Then there is the question of glacier flow and scouring. Looking back at the Quelccaya glacier and the soft bodied plants it preserved, it is evident there was no flow but an abrupt advance in the permanent ice line (dated to about 2350bce, at when Dodwell said obliquity changed. Quelccaya is at the old tropic at ~14.5 deg south, a latitude that experienced maximum decrease in solar insolation abruptly). The same is evident at the Mendenhall. It is a fast advance in permanent ice that preserved the lowest parts of trees, the stumps; any glacier flow/advance would be on top of that.

    In retrospect we are seeing a climate metronome beating at somewhere near ~975yrs., and maybe a good dating chronometer.

  3. Mistake above : 650CE (dark age cold period)

  4. johnm33 says:

    You’ve likey got this somewhere in your work, but Hibben had the misfortune to do all this work just when catastrophism was being crushed. https://www.journals.uchicago.edu/doi/abs/10.1086/newmexianthr.5.4.4291251?journalCode=newmexianthr
    I’m beginning to wonder if Venus reached some threshold in it’s slowing rotation that interacted with the aether and created a state change in the vortice/em fields or that seem to be guiding planetary rotation, an analog if you will of an electron switching orbits, with knock on effects spreading out through the system. Another possiblity ref. to M.Mathis view of anti-matter is that if Jupiter/Venus were captured from the galaxy that intersects the milky way maybe it has the opposite charge field to the solar system which may help explain it’s peculiar spin.

  5. malagabay says:

    “Hibben had the misfortune to do all this work just when catastrophism was being crushed”
    A very timely prompt. Thank you.

  6. Yry says:

    A Giant Leap, Tim!
    The GRIP diagram is spectacular layerwise.

    I wonder (like L. Hissink about loess) if the huge soft soil deposits in
    north west South America could be related at all with the so far
    unknown process that produced loess in the northern hemisphere.

    As an example there are many glaciers in Colombia and throughout
    the Cordilleras of western South America.
    Now that could explain the presence of non-fossilized forest trees
    laid flat under a soft soil dark layer of ca 15 m in central Bogota.
    (just in case for History: Carrera 11 with Calle 79 was the find made
    by a Spanish construction engineer. It’s now a building…)

    And thanks to Laura Poppick, Juneau Empire & M. C. Martin for
    their valuable research.

  7. johnm33 says:

    Velikovsky wrote about agricultural terraces going up way beyond the snowline near lake Titicaca he also mentioned the remnant sea flora/fauna in the lake and the salt lake it drains into. If Tiwanaku was built as a seaport then, in the scenario I outlined here https://malagabay.wordpress.com/2019/06/10/hecker-horizon-konrad-von-megenberg/comment-page-1/#comment-22798 it would have been uplifted as the planet began to spin again, forcing huge amounts of seabed to blend and fold into the underlying near liquid viscous rock. A similar fate would be met by the Bogata area except that there it looks like they would ‘catch’ the returning flood from the poles which would wash over any debris left by electrical or sudden freezing action, not to mention the excess erosion from the subsequent barren landscape, the immediate uplift that followed the returning spin would carry it up through several climate zones, were the plants found coastal adapted?
    The best base map/model I’ve seen of Greenland is https://cryospherecomputing.tk/Bedrock.html Question any ideas what the hills sw of Novosibersk are made of, they look like the limit of frozen waves coming from the north so should be a huge mix of debris? and the arc of raised ground half way back towards the Arctic looks like backwash, makes the missoulla flood look puny. http://elevation.maplogs.com/poi/kazakhstan.10703.html

  8. craigm350 says:

    Reblogged this on WeatherAction News and commented:
    If preserved trees are found under glaciers in Switzerland, Greenland and Alaska then the observational evidence tells us that the modelled ‘evidence’ is based on incorrect assumptions about the past.

    If we are to panic, then it is far wiser to panic about what has already happened before rather than tipping poings that only tip credulity. Change rarely comes gradually where the boundaries slowly wax and wane. Changes are often swift and sudden maybe not a freeze dry scenario*, nor the fairy tale of a goldilocks climate that gradually changes but nor are they based on a bedtime monster molecule that is being used to take our cash and liberties.

    https://weatheraction.wordpress.com/2018/10/09/receding-swiss-glaciers-reveal-4000-year-old-forests-warmists-try-to-suppress-findings-2/

    *https://www.telegraph.co.uk/news/2019/06/11/40000-year-old-ice-age-wolf-head-found-siberia/

  9. Yry says:

    @ johnm33 said:

    ” A similar fate would be met by the Bogota area except that there
    it looks like they would ‘catch’ the returning flood from the poles
    which would wash over any debris left by electrical or sudden
    freezing action, not to mention the excess erosion from the
    subsequent barren landscape, the immediate uplift that followed
    the returning spin would carry it up through several climate zones,
    were the plants found coastal adapted? ”

    ===> very interesting. I’d read several times about this return
    flood event and was not aware that there could have been an
    immediate uplift thereafter.
    For information, in the Departamento (State of) of Cundinamarca,
    the capital of which is Bogota, one can find countless ammonites,
    shells & crustaceans entrapped in blocks, slabs & balls of light-
    weight limestones AND ALSO in blocks of hard rock. Again, countless
    hard rocks are found electrically twisted with the strangest shapes
    while bearing these ancient sea creatures.

    ——–

    ” what the hills sw of Novosibirsk are made of, they look like the
    limit of frozen waves coming from the north so should be a huge mix
    of debris? and the arc of raised ground half way back towards the
    Arctic looks like backwash.. ”

    ===> very interesting as well: I also worked in Novosibirsk not
    that long (really enjoyed it, good people) but sufficiently to
    notice an overwhelming amount of light ochre soft soil everywhere
    making for nice beaches along the huge river that crosses it.
    Once I witnessed there a huge rumbling sandstorm like in the Sahara.

    You mentioned “limits of frozen waves” & “arc of raised ground
    looking like backwash”: -coincidentally I have noticed and wondered
    about these features recently and never imagined they would have
    something to do with a backwash & frozen waves. It makes sense.
    I suspect Tim is also aware of this…

    (Any dating for these events?)

    Thanks for your nice remarks, cheers, Yry.

  10. johnm33 says:

    Thanks for that interesting and informative response Yry, as far as dates go I’m inclined towards the ‘mythological’ stories timelines so 3.5-4.5k bp. for the elements we’re discussing.
    Mendenhall glacier doesn’t fit into that picture, more recent it may simply be the result of an expansion, warming event delivering more heat into the Arctic leading to extreme evaporation precipitation???
    cheers john

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