Климат, лед, вода, ландшафты

Climate, ice, water, landscapes

Рудой Алексей Николаевич

A N Rudoy, V R Baker. Sedimentary effects of cataclysmic late Pleistocene glacial outburst flooding.

Inya-logoНа эту нашу с Виком Бейкером статью, которая вышла почти 20 лет назад - уже сотни ссылок в самых разнообразных изданиях, как и на статью в журнале Science (1993). Можно говорить, что регулярные международные экспедиции и изучение скэбленда во всем мире началось именно вот с этих первых наших работ в международной периодике. До этого я писал в СССР по-русски и, по сути, - для себя. Потому полагаю эту пионерную статью важной. Однако, в России, хотя на неё и ссылаются в соответствующих публикациях, саму работу, как и статью в QI, мало кто видел, ссылаются, в данном случае уже по привычке. Подумалось, как первому соавтору, что пора её выставить с сохранием всех авторских прав издательства и  журнала. На фотографии Артёма Головина - дилювиальные валы-бары в устье р. Иня, Центральный Алтай.

 

 

RudoyBaker.pdf

© Sedimentary Geology, 85 (1993) 53-62 53
© Elsevier Science Publishers B.V., Amsterdam

Sedimentary effects of cataclysmic late Pleistocene glacial outburst flooding, Altay Mountains, Siberia

Sed_Geol© A.N. Rudoy (a) and V.R. Baker (b)
(a) Geography Department, Tomsk State Pedogogical Institute, Tomsk, Russia 

(b) Department of Geosciences, University of Arizona, Tucson, AZ 85721, USA

Received June 30, 1992; revised version accepted November 30, 1992

ABSTRACT
Rudoy, A.N. and Baker, V.R., 1993. Sedimentary effects of cataclysmic late Pleistocene glacial outburst flooding, Altay Mountains, Siberia. In: C.R. Fielding (Editor), Current Research in Fluvial Sedimentology. Sediment. Geol., 85: 53-62.

Pleistocene glacial outburst floods were released from ice-dammed lakes of the Altay Mountains, south-central Siberia. The Kuray-Chuja lake system yielded peak floods in excess of 1×106 m3 /s  and as great as 18×106 m3/ s. The phenomenally high bed shear stresses and stream powers generated in these flows produced a main-channel, coarse-grained facies of coarse gravel in (1) foreset-bedded bars as much as 200 m high and several kilometers long, and (2) degradational, boulder-capped river terraces. Giant current ripples, 50 to 150 m in spacing, composed of pebble and cobble gravel, are locally abundant. The whole sedimentary assemblage is very similar to that of the Channeled Scabland, produced by the Pleistocene Missoula Floods of western North America.

Introduction


In July 1991, the authors investigated evidence for Pleistocene cataclysmic flooding in the Altay Mountain region of south-central Siberia. The purpose was to compare the recently documented diluvial morphogenesis of the Altay Mountains (Rudoy, 1988a, 1990; Rudoy et al., 1989) with established work on the Channeled Scabland region of North America, which was formed by cataclysmic erosion and sedimentation associated
with outbursts from Pleistocene Lake Missoula (Bretz et al., 1956; Baker, 1973, 1978a; Baker et al., 1987).

 

In both Eurasia and North America, Pleistocene glaciations are accompanied by the inception and growth of gigantic ice-dammed lakes (Elson, 1992). Recent work at the margins of the former North American ice sheets (Baker and Bunker, 1985; Kehew and Lord, 1987; Teller, 1987) has documented pervasive evidence of Pleistocene cataclysmic outburst floods (j6kulhlaups). Such floods, which are a direct consequence
of deglaciation, may have exerted major short-term influences on global fluxes of water and sediment (Baker, 1993). Shaw (1989) has even proposed that subglacial meltwater may be a major contributor to cataclysmic flooding, although his evidence of fluvially eroded drumlins (Shaw et al., 1989) is disputed by many glaciologists (e.g., Muller and Pair, 1992). In one reconstruction of the late Pleistocene Eurasian ice sheets, Grosswald (1980) envisions spectacular damming of the great north-flowing Siberian rivers with associated spillovers and drainage diversions (Fig. 1). An alternative reconstruction involves much less ponding and diversion (Velichko et al., 1984), but incomplete field mapping and geochronology precludes scientific preference for either of these hypothetical alternatives.

Nevertheless, it is clear that the phenomenon of massive, regionally extensive, highenergy flooding was an important feature of global Pleistocene glaciation. Evidence of such phenomena is to be expected in pre-Quaternary glacial sediments. Physical setting and flood processes The Altay Mountain study area lies in the upper Ob River basin, upstream of the Pleistocene network of Siberian glacial lakes and diversions (Fig. 1). The intermontane depressions of the Altay have long been known to have contained Pleistocene glacial lakes. The two largest Altay Pleistocene lakes occupied the Kuray and Chuja depressions in the headwaters of the Chuja River (Fig. 2). Together these interconnected lakes held at least 1000 km3 during the latest Pleistocene glaciation (Rudoy, 1988a). Water depths reached 600 m with a 900 m stage during an earlier Pleistocene phase (Rudoy et al., 1989). The lake dimensions are comparable to those of Pleistocene Lake Missoula, which held about 2500 km3 at a maximum depth of 635 m at its ice dam (Baker and Bunker, 1985).

13.06.2011 12:03 5164
 

Комментарии  

 
#145 Lyda 02.03.2015 16:50
Based on the DOJ infotmation relesase , in July of this 12
months, VSI settled a civil case with the federal government, wherein VSI paid $520,
000 to resolve allegations that it prompted false claims to be submitted to
federal well being applications by markting a edical
machuine for the ablation (or sealing) of perforator veins wihout FDA approval
and regardless of the failure of its personal scientifc trial.” The civijl case seems to relate to the same advertising
practices that kind the basis of the flony case that wwas initiated final week.
Цитировать
 
 
#144 sims Freeplay Cheats 28.02.2015 09:58
Hello! Quick question that's completely off topic. Do you know how to
make your site mobile friendly? My weblog looks weird when viewing from my iphone4.
I'm trying to find a theme or plugin that might be able to fix this problem.
If you have any recommendations , please share. Cheers!

My web blog :: sims Freeplay Cheats: http://www.fortunechaser.com/groups/the-sims-3-ambitions-live-your-favorite-luxury-job-vicariously/
Цитировать
 
 
#143 hack dragon city 27.02.2015 08:53
Fantastic beat ! I would like to apprentice while you amend your site, how can i
subscribe for a blog site? The account helped me a acceptable deal.
I had been tiny bit acquainted of this your broadcast provided bright clear concept

my web page; hack dragon city: http://manyhacks.com/dragon-city-hack/
Цитировать
 
 
#142 clash of clans town 26.02.2015 02:12
Hello There. I found your blog using msn. This
is a very well written article. I'll be sure to bookmark it and return to read
more of your useful info. Thanks for the post. I will certainly comeback.



Take a look at my web blog: clash of clans town hall 7 farming
base: http://manyhacks.com/clash-of-clans-hack/
Цитировать
 
 
#141 sims freeplay help 19.02.2015 09:23
Hi there! I could have sworn I've been to this website
before but after checking through some of the post I realized it's new to me.
Nonetheless, I'm definitely delighted I found it and I'll be book-marking and checking back often!
Цитировать
 
 
#140 http://www.vilkash. 31.01.2015 00:38
What's up to all, the contents existing at this website are really amazing for people experience, well,
keep up the nice work fellows.
Цитировать
 
 
#139 www.vilkash.com/ 30.01.2015 15:48
I'm extremely impressed together with your writing talents and also with
the layout to your blog. Is that this a paid subject matter or
did you customize it yourself? Anyway stay up the nice high quality writing, it is uncommon to peer a nice weblog like this one
today..
Цитировать
 
 
#138 www.ijkijsdfmsn.com 20.01.2015 10:25
We stumbled over here by a different page and thought I might check
things out. I like what I see so i am just following you.
Look forward to looking into your web page repeatedly.
Цитировать
 
 
#137 castle clash hack 20.01.2015 03:46
Updates have helped but sign in problems still have persisted.
There is a long list of military medals and decorations that can be earned by service members of every
branch of service. To record voices, you can either dub over scripted
animations or record your voice chat while
playing multiplayer.
Цитировать
 
 
#136 clash of clans hack 19.01.2015 08:33
(From the Indian point of view, an avatar would also be
a hybrid or mestizo interdimensiona l, because here it
would blend the spiritual and the material plane into a being of flesh, bone and psyche).
So, you have to put the highest amount in this
time because this is a sure thing and it have been tried by many people clash of clans
cheats fan who are now looking forward to clash of clans hack for
a windows version. Shiites and Sunnis have been at war for a very long time.
Цитировать
 

Добавить комментарий


Прощай мой дом

JavaScript is disabled!
To display this content, you need a JavaScript capable browser.

О проекте

Всё об удивительном и загадочном мире льда и ледников, ландшафтов и людей и их жизни. Всё о планете Земля и о других планетах.

Интересы: снег, вода, горы, лед, катастрофы, все, климат, рельеф, ледники, приледниковые озёра, геоморфология, гляциология, новые теории и проекты в гляциологии, геологии и геоморфологии, а также качественная музыка и всё интересное и в науке, и в экспедициях, что сочтут для себя важным участники проекта, в природе и в жизни.. ....в общем всё.

Наши новости
Текущая информация для студентов
Ключевые слова
Авторизация



logotipЧитателям, слушателям и просто прохожим: сайт и все материалы, опубликованные на нём -  интеллектуальная собственность владельца сайта, и/или авторов соответствующих материалов. Ссылки на сайт, а также ссылки на авторов публикаций,

trudovaslava.info

(и фотографий, разумеется, тоже) обязательны. Соответствующие законы РФ и других стран известны, лицензии - на месте. Воруют, конечно, и не взирая на копирайты, но мы создали сайт для порядочных людей. Не хочется об этом напоминать, но факт любой недобросовестной ссылки-цитирования или пересказа, во- первых, будет предан широчайшей огласке через сеть всеми популярными научными каналами. А далее, возможно, последует и во-вторых..... Спасибо.

Контакты: ran@mail.tomsknet.ru