What does "Chesapeake Bay" mean? Chesapeake impact crater

Chronicles: Chesapeake Bay epidemic 2009. Jack Howard spent two days on the Pocomoke River. By the evening of the second day, the recurring stomach cramps returned, and vomiting began.

Mr. Howard said he knew the reason - the river.

As it was

Scientists believe that microorganisms make people sick and kill fish by the thousands along East Bank Chesapeake Bay. People suffered from itchy, red rashes covering the skin, complained of memory loss, respiratory attacks. Many fish developed bloody sores.

Mr. Howard, 46, has spent years working on a river that flows into southern part bay, now spends his days collecting water samples. According to him, pulling out the nets, he discovers that 90 percent of the fish are covered with ugly sores.

Maryland and Virginia have closed to swimming, boating and fishing in the seven-mile Pocomoke area and a small portion of Pocomoke Sound near the river's mouth.

A team of researchers from the Johns Hopkins Hospital in Baltimore and the University of Maryland Medical Center said the toxin released by the microorganism damages the human brain. This leads to loss of concentration and short-term memory, diarrhea, breathing problems, and malaise.

Scientists who discovered pfiesteria in the early 1990s say the single-celled organism has existed for centuries, usually in a non-toxic form, feeding on bacteria and algae. Researchers suspect that animal waste and fertilizer from farms, poultry farms, falling into the water of the Chesapeake Bay, stimulate pfiesteria to multiply.

The microorganism releases a toxin that affects the fish, it attaches to the skin, feeds on tissues and blood. People get sick from contact with water.

Problems associated with pfiesteria, including reports of human disease, have been recurring for years.

The Chesapeake Bay Estuary is America's largest Susquehanna River, flowing into the town of HavredeGrace near Harford. Represents the most famous natural landscape North America and repeats the neighborhood. Considered a de facto share Atlantic Ocean, which juts out into the mainland and is located between the states of Maryland and Virginia.

The name comes from the word "Chesepiooc", which means in the Algonquian language of the Indians of the tribe "nantikok - powhatan" big river, which is rich in fish with hard scales. The first white man to explore the Chesapeake Bay is Captain D. Smith, whom everyone knows from the legend of Pocahontas. According to legend, he decided to found the first settlement of Europeans in this place when he was struck by the beauty of the local nature. In the western part of the bay area in Calvert lies the Calvert Cliffs nuclear power plant.

Description of the bay

The geological relationship is former length The Susquehanna River, created more than 15 thousand years ago, at that time the sea level was 100m lower than today. At its narrowest point near Annapolis, the Chesapeake Bay is about 6.5 kilometers wide, and there is a built bridge at this point. The mouth has a good transport connection, which is available between the banks, it is provided by means of a bridge-tunnel.

Chesapeake impact crater

During the Eocene, about 35 million years ago, at the entrance to the bay, a large meteorite fell, which left behind a crater 85 km in diameter and 1.3 km deep. central part crater, located under water about 8 km to western territory from Cape Charles. The crater contains breccia, which over time has accumulated a layer of sedimentary rocks 300-500 meters above it. Breccia is the cause of the disturbance of the natural soil water system, and is more than 1.5 times higher than the norm in soil water. To the local population adjacent lands, high water salinity has been known for a long time.

English-Russian translation CHESAPIKE BAY

CHESAPIKE BAY

Atlantic Ocean, off the coast of the USA. The bay is named after the village of Chesepiok - presumably Algonk. "(village) at big river" (che "big", sepi "river", ook - "at, at").

English-Russian geographical dictionary. English-Russian geographical dictionary. 2012


English-Russian Dictionaries

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The operation to encircle the British troops went off without a hitch. The ring is closing around General Cornwallis, and he, at his headquarters in York, waits in vain for reinforcements. Its only support is the small squadron of Rear Admiral Symonds, anchored at the mouth of the York River.

While Rochambeau's troops and Washington's detachments were advancing south in accelerated marches, de Barras' squadron, which included eight ships of the line, three frigates and ten transports loaded with ammunition and ammunition, left Rhode Island and also headed for the Chesapeake Bay. Infantry and fleets from San Domingo, New York and Rhode Island rushed to the rendezvous point.

General Clinton overlooked the change in the operational environment and for some time was convinced that the Americans and the French were engaged in the Regrouping of Forces and that their goal was still New York. In order to completely confuse the British, barrage detachments were left under New York - like a curtain covering the empty stage. General Cornwallis continues to wait for the arrival of the British squadron, which should ferry his troops to the north, where he is going to link up with General Clinton's army. The British have no doubt that the entire French fleet is grouping north of New York. Chance also intervened: Admiral Rodney was overtaken by a serious illness, and, going to England, he ordered Hood to go with fourteen ships to New York to connect with Graves. Hood passed off the coast of Florida five days ahead of Admiral de Grasse.

Chesapeake is a huge bay, rather even an inland sea more than three hundred kilometers long, the James and York rivers flow into it. At the exit of the bay there are three large sand banks, leaving for the passage large ships just a very narrow space.

Admiral de Grasse personally commanded the landing of the troops brought on his squadron. A regiment of hussars and a company of du Barrois from the Scipio and the Citizen were transported on longboats to Jamestown. They linked up with Lafayette's troops, and Saint-Simon, although of higher rank, came under his command.

The frigates "Andromache", "Sandwich" and "Daring" took vigilant control of the mouth of the James River, where the general headquarters of the Allied army was located. General Cornwallis was completely cut off from the sea, where the ships de Cara and Traversay patrolled. Together they captured the sloops "Cormorant" and "Queen Charlotte", one small brig and an excellent twenty-two-gun corvette "Loyal Subject" - leaving his post of senior assistant on the "Heron", Augustin du Ken moved there as captain. Taking advantage of its excellent driving characteristics, "Heron" takes prizes one by one. September 2 at pouring rain and strong windiness, the pursuit of three enemy ships was carried out, which were forced to drift at eleven o'clock in the evening. Crews from the captured ships that came from Jamaica and from Charleston to the aid of General Cornwallis are sent to the "Citizen" and "Holy Spirit", commanded by Tee and Chabert; the captured English officers were given all due honors.

One can imagine the joy of young naval officers, whom military fortune brought to the captain's bridge of ships captured in battle and opened the way for glory and honor! Among them was midshipman Augustin du Ken de Aongbren.



Plan:

    Introduction
  • 1 Geographic data
  • 2 Crater
  • 3 Inflowing rivers
  • Notes

Introduction

View of the Chesapeake Bay from space

Chesapeake Bay(English) Chesapeake Bay[ˈtʃɛsəpiːk] ) is a large river estuary in the United States and one of the most famous natural landscapes North America. It is a de facto part of the Atlantic Ocean, jutting into the mainland and located between the states of Virginia and Maryland.

The name comes from the word Chesepiooc, meaning in the Algonquian languages ​​​​of the Powhatan and Nantikok Indians "a mighty river rich in fish with hard scales." The first white man to explore the Chesapeake Bay was Captain John Smith, of Pocahontas legend. According to legend, he decided to establish the first European settlement here, being struck by the beauty of the local nature.

On the west coast of the bay at Lusby, Calvert is the Calvert Cliffs Nuclear Power Plant.


1. Geographic data

The area of ​​the Chesapeake Bay is 12 thousand km², and the basin of the rivers flowing into it covers an area of ​​166 thousand km². More than 150 rivers and streams flow into this natural bay, which is 311 km long. Geologically, it is the former valley of the Susquehanna River, which was created by the river more than 15,000 years ago, when sea levels were 100 meters below today. At its narrowest point near Annapolis, the width of the Chesapeake Bay is only 6.5 km and a bridge has been laid here. At the mouth, transport communication between the banks is provided by a bridge-tunnel.


2. Crater

During the Eocene, about 35 million years ago, a large meteorite fell at the entrance to the bay, leaving a crater with a diameter of 85 km and a depth of 1.3 km. The center of the crater, located under water 8 km west of Cape Charles, was found only in 1993 while drilling for oil. The crater consists of breccia, over which a layer of sedimentary rocks from 300 to 500 m has accumulated over time. Breccia is the cause of the disturbance of the natural groundwater system, as well as the salt content in groundwater that is more than one and a half times higher than the norm. The inhabitants of the adjacent lands have known the high salinity of the water since ancient times. Groundwater is for the most part unfit for consumption, but the cause was not established until after the discovery of the crater.


3. Flowing rivers

  • Susquehanna
  • Potomac
  • James
  • Appomattox
  • Rappahannock
  • Patuxent
  • Choptank

Notes

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This abstract is based on an article from the Russian Wikipedia. Synchronization completed on 07/10/11 22:59:43
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