Ghosts of semi-obliterated Carolina bays appear to represent former bays which were filled after formation by terrestrial sediments and organic materials. Small bays deviate further from the mean orientation per region than large bays. No variation in the heavy mineral suite was found along a traverse of the major axis of one south Carolina bay, even though samples were taken from the bay floor, bay rim and the adjacent non-bay terrace (Preston and Brown, 1964). The range and number of Carolina bays are a significant (if crudely catalogued) factor in their description. Bays are identified along the entire range of the mid-Atlantic seaboard, from New Jersey to Florida, and increase in frequency to a highest concentration along the border of North and south Carolina. The average of the "Long Axis" of multitudes of individual Carolina bays all converge in certain locations Click above figure. .
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Bays in south Carolina are found on relict marine barrier beaches associated with Pleistocene sea level fluctuations, in dune fields, on stream terraces and sandy portions of backbarrier flats (Thom, 1970). No bays occur on modern river flood plains and beaches. Bays exist on marine terraces as much as 150 feet above sea level in south Carolina but also occur on discontinuous veneers of fluvial gravels on the piedmont in Virginia (Goodwin and Johnson, 1970). Carolina bays appear to be equally preserved on terraces of different ages and formational processes. Bays occur in linear arrays, in complex clusters of as many as fourteen bays, as scattered individuals, and in parallel groups aligned jazz along the minor axes. Bays are either filled or partly filled with both organic and inorganic materials. The basal unit in some bays is a silt believed to represent loess deposited in water. No new bays appear to be forming although Thom (1970) and Frey (1954) cite evidence for recent enlargement of existing Carolina bays. Price (1968) states that most bays appear to be getting smaller by infilling. Bays are underlain by carbonate, clastic and crystalline bedrock overlain by variable thicknesses of unconsolidated sediments in which the bays are found.
Many bays have elevated sandy rims with maximum development to the southeast. Both single and multiple rims occur, and the inner ridge of a multiple rim is less well developed than the outer rim. Rim heights vary from 0 to 23 feet. Carolina bays frequently overlap other bays without destroying the morphology of either depression. One or more small bays can be completely contained in a larger bay. Some biography bays contain lakes, some are boggy, others are either naturally or artificially drained and are farmed, and still others are naturally dry. The stratigraphy beneath the bays is not distorted (Preston and Brown, 1964; Thom, 1970). Bays occur only in unconsolidated sediments.
Many bays, however, lack true bilateral symmetry along either the major or minor axis. The southeast portion of many bays is more pointed than the northwest end and the northeast side bulges slightly more than the southwest side. Known major axis revelation dimensions vary from approximately 200 feet to 7 miles. The carolina bays display a marked alignment with northwest-southeast being the preferred orientation. Although there are minor local fluctuations, deviations from the preferred orientation appear to be systematic by latitude (Prouty, 1952). The bays are shallow depressions below the general topographic surface with a maximum depth of about 50 feet. Large bays tend to be deeper than small bays, but the deepest portion of any bay is offset to the southeast from the bay center.
As seen below, they are further characterized by an elevated rim of fine sand surrounding the perimeter which defines a unique interior ecosystem. Conference poster concerning Carolina bay formation from the may 23-25, 2007. American geophysical Union (agu joint Assembly, acapulco, mexico Though uniform in the broad sense, the bays are dramatically different in the particulars of their measurements and hydrology. The length of bays ranges from lake waccamaw,. C., at 7 miles, to depressions only 200 feet long, with a median length of approximately 1/4 mile. The depth of bays ranges from 0 to 23 feet below the elevation of the surrounding terrain. Eyton and Parkhurst detail additional characteristics of Carolina bays below:. The carolina bays are ellipses and tend to become more elliptical with increasing size.
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See the mysterious North American "Black mat" here. Sandia national Nuclear Laboratory modeling of small asteroid airbursts. See the Acapulco/agu press Conference on. National geographic Show on 20 oblique aerial photos of Carolina bays. Yd impact Abstracts, may 22, 2007 pages Acapulco agu. Search google for "Younger Dryas" and "black mats".
Acapulco joint Assemblyagu session on the Ice Age catastrophe. The carolina bays and the Ice Age catastrophe. Ancient Myth and comet encounters, impact Frequency Analysis, ancient Art and Comet Inspired Motifs. Please also see: Bob Kobres' page, a description of characteristics, carolina bays (so named for the profusion. Bay trees they support) are first distinctive because of their uniform nature. Unlike virtually any other bodies of water or changes in elevation (Kaczorowski these topographical features follow a reliable and unmistakable pattern. Carolina bays are circular, typically stretched, elliptical depressions in the ground, oriented along their long axis from the northwest to the southeast.
Please leave comments and observations in the albums below. I am now blogging at the. Agu fall meeting, wednesday, december 16, 2009, younger Dryas boundary: Extratrrestrial or Not? Oral Session pdf of abstracts. Poster Session pdf of abstracts, january 2009 cover story in Metro magazine.
Three part Series on Carolina bays from the virginian-Pilot. Lidar elevation images of Carolina bays. Surf Carolina bays yourself on google earth! See the Clovis Comet presentation to the 2008 Pecos Archeological Conference here "The Clovis Comet" from the mammoth Trumpet. Our article in the Proceedings of the national Academy of Science with data from the carolina bays. Various links and articles concerning the younger Dryas Impact event.
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Home contact george, the carolina bays, george. North Carolina naturalist, john Lawson stripped naked with his party in 1709 to cross a swamp he then called a "Thick percoarson" * lawson, a new voyage to carolina). It may be that Lawson was struggling through what today we call a carolina bay. . Since lawsons time, generations of observers presentation have been frustrated and fascinated by the low, wet pocks in the ground scattered from Delaware to Florida. These shallow, oriented, depressions - some filled with water and many named as lakes, most in a vegetated wetland state - are unlike any other natural feature of the American landscape. . Subtle when seen from the ground, dramatic unmistakable ellipses when viewed from the air, carolina bays define the front yard of America. Yet, the process which created these wonderful features of our environment remains an open question. This paper will investigate the nature of the carolina bays, the obscure debate regarding their origin, and reveal new information that demands further study by the scientific community.
In Udaipur we visited. City palace, lake itil pichola, fateh Sagar lake and, jag Mandir. Fateh Sagar lake attracted me much. If you can spare three days and two night for Udaipur then it can be covered fully. We returned to jodhpur and came back to durgapur. Overall conclusion is that this winter vacation was the best winter vacations we ever enjoyed in past. The rajasthan tour spots are really very interesting to see.
a night rest at Jodhpur. After that we went to jaipur. The main attractions of jaipur were. Hawa mahal, Amer Fort, city palace, jantar Mantar jai mahal and Nahargarh Fort. There are also more to see, but due to shortage of time we couldn't complete rest. We completed these spots in one night two days. Finally we returned back to jodhpur and on the same day we went to Udaipur (254 km by nh 65).
The palaces fuller of jaipur, lakes of Udaipur, and desert forts of Jodhpur, bikaner jaisalmer are among the most preferred destination of many tourists. Mehrangarh Fort (Click to see the images of Mehrangarh fort) in Jodhpur usually regarded as the best fort in Rajasthan, is a must watch fort. We made jodhpur as centre to cover Udaipur, jaipur, and jaisalmer. We decided it from very beginning with the help. In jaipur we visited Jaswant Thada, umaid Bhawan Palace, and the gardens at the older capital of Mandore. We also went to the village safari saw the desert life. One day is sufficient to complete the jodhpur main visiting spots. Then we went to jaisalmer by mdr 32 and nh 15 by road. It took four and half hour to reach to jaisalmer (285 km).
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Out of many vacations, winter vacations has its own delight and enthusiasm. Winter season is blessed with very cool weather conditions. This winter vacation first forced me to select best vacation destination of India. I told my papa about my desire. He agreed and he discussed with his friend's 'family vacation ideas'. After that we ultimately selected best vacation destination as Rajasthan this time. It is because we've visited other vital locations of India but never tasted the magical look of royal State of Rajasthan. Rajasthan experiences cold climatic condition during winter season similar to other states of India. Blessed with natural beauty and enriched history rajasthan has been popular destination to attract every third foreign tourists for it's palaces, historical forts and culture.