Geomorphic Effects of Indurated Veneers on Granites in the Southeastern States

نویسندگان

  • William A. White
  • WILLIAM A. WHITE
چکیده

Indurated surficial veneers are a characteristic phenomenon on exposures of unjointed granite in the southeastern states. They are caused by deposition of iron oxides in the interstices between the partially disaggregated mineral grains of the "sap" rock at the surface of the exposure. Breaching of veneers produces such peculiar erosional forms as weather pits, cavernous boulders, and pedestal rocks.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Response of Fluvial Systems to Large Flood Events

In the summer of 2001, an intense thunderstorm in southeastern Caspian Sea triggered a catastrophic flood in the Madarsoo basin . Use of methods including high-resolution aerial photographs and satellite images interpretation, multi-date mapping, hydraulic calculations and field observations made possible the documentation of the geomorphic impacts on the Madarsoo River and its tributaries. Geo...

متن کامل

Geomorphic and land cover assessment of dust sources affecting the west and North-West Iran

Background and Amis: The most important environmental challenges facing the West of iran in recent years is the dust phenomenon, that today has become one of the most important problems in arid and semi-arid areas. This phenomenon occurs as a climatic phenomenon in all climatic conditions, that causes adverse social, economic, environmental and commercial impacts. In this research have used dus...

متن کامل

Bilateral indurated violaceous non-tender plaques on the nasal ala

A 77-year-old Iranian man was visited at the Dermatology Department of Loghman-e Hakim Hospital affiliated with Shahid Beheshti University of Medical Sciences on June 2012 with bilateral, symmetric, raised, violaceous and painless plaques on the nose (both ala nasi), from one year ago. The lesions were small at first and then grew gradually larger in size. Systemic symptoms such as fever, weigh...

متن کامل

Comparing Some Ecological Attributes of Cercis griffithii Boiss. on Geomorphic Faces of Arghavan Valley local of Binalood county, Khorasan Razavi province

The Arghavan Valley of Binalood county located at Khorasan Razavi province, is a habitat for valuable and almost rare plant community in eastern Iran which dominated by Cercis griffithii Boiss. shrubs. This habitat is very important for environmental aspects and combat desertification. It’s documented where arid and semi-arid shrublands destroyed, it is very difficult to restore. The Arghavan v...

متن کامل

تحلیل فضایی مخاطرات ژئومورفیک تهدید کننده مجتمع های زیستی شهری در استان لرستان

Natural hazards are basically the changes that occur in environmental conditions, causing a disruption of the natural life of the people and their exposure to hazardous and degradable elements and elements. Establishing cities and residential areas on landforms has created new perspectives. The development of these areas has altered the geostationary balance of many landforms, and the response ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008