"outer layer"

#10646322

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646324

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646326

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646328

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646330

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646332

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646334

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646336

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646338

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646340

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646342

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646344

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#10646346

16 Oct 2023

An elliptical crater basin is seen in the Gobi in Hami, Xinjiang province, China, October 15, 2023. Its shape is a standard oval with a long half-axis of about 5 km and a short half-axis of about 3 km. According to geological data, the crater left by the Carboniferous volcanic eruption in the Elliptic basin is the outer layer of the elliptic magmatic rock and the mountain is the remnant of the crater, and the interior is distributed with large and small jet cones and black and metallic pyroclastic rocks everywhere.

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#921541

22 Nov 2015

A drone view of chalcolithic settlement Bobata near Avren, pictured on 21 November 2015, Saturday, some 450 km from the capital of Sofia, lies on a top of a rock with an area of 0,25 ha on the north-western edge of the Avren plateau. It is aged about V-II century B.C. The settlement is approachable only from the north side, while the east, south and west sides are vertical and over 120 m high rocks. The accessible north side is enclosed by a 65 m long, arc-shaped stone wall. The settlement has a strategic defensive position, overlooking the major trade route leading from the lakes of Varna and Beloslav through the Balkan range via the low Aytos pass to Thrace. A 12,20 m long section of the stone enclosure wall was uncovered. The wall is constructed of large undressed stones without mortar and is preserved to a maximal height of 1,60 m. The width of this structure was 1,80-2,00 m. The chalcolithic cultural layer in the interior of the settlement is 1,30 m thick and includes two forts of habitation. The inner fort is 190 m long and there were lived thracian senior citizens, and the outer is 320 m long and there are traces of other population. It is believed that the settlement was inhabited by XI century. The excavations uncovered the well-preserved remains of burnt houses-collapsed wattle-and-daub walls, house floors, installations such as ovens as well as concentrations of finds in situ. All archaeological materials and features at the site date to the Late Chalcolithic period. The materials correspond typologically to the Late Chalcolithic finds from Durankulak and Varna. Photo by: Petar Petrov /Impact Press Group/NurPhoto

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#921542

22 Nov 2015

A drone view of chalcolithic settlement Bobata near Avren, pictured on 21 November 2015, Saturday, some 450 km from the capital of Sofia, lies on a top of a rock with an area of 0,25 ha on the north-western edge of the Avren plateau. It is aged about V-II century B.C. The settlement is approachable only from the north side, while the east, south and west sides are vertical and over 120 m high rocks. The accessible north side is enclosed by a 65 m long, arc-shaped stone wall. The settlement has a strategic defensive position, overlooking the major trade route leading from the lakes of Varna and Beloslav through the Balkan range via the low Aytos pass to Thrace. A 12,20 m long section of the stone enclosure wall was uncovered. The wall is constructed of large undressed stones without mortar and is preserved to a maximal height of 1,60 m. The width of this structure was 1,80-2,00 m. The chalcolithic cultural layer in the interior of the settlement is 1,30 m thick and includes two forts of habitation. The inner fort is 190 m long and there were lived thracian senior citizens, and the outer is 320 m long and there are traces of other population. It is believed that the settlement was inhabited by XI century. The excavations uncovered the well-preserved remains of burnt houses-collapsed wattle-and-daub walls, house floors, installations such as ovens as well as concentrations of finds in situ. All archaeological materials and features at the site date to the Late Chalcolithic period. The materials correspond typologically to the Late Chalcolithic finds from Durankulak and Varna. Photo by: Petar Petrov /Impact Press Group/NurPhoto

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#921545

22 Nov 2015

A drone view of chalcolithic settlement Bobata near Avren, pictured on 21 November 2015, Saturday, some 450 km from the capital of Sofia, lies on a top of a rock with an area of 0,25 ha on the north-western edge of the Avren plateau. It is aged about V-II century B.C. The settlement is approachable only from the north side, while the east, south and west sides are vertical and over 120 m high rocks. The accessible north side is enclosed by a 65 m long, arc-shaped stone wall. The settlement has a strategic defensive position, overlooking the major trade route leading from the lakes of Varna and Beloslav through the Balkan range via the low Aytos pass to Thrace. A 12,20 m long section of the stone enclosure wall was uncovered. The wall is constructed of large undressed stones without mortar and is preserved to a maximal height of 1,60 m. The width of this structure was 1,80-2,00 m. The chalcolithic cultural layer in the interior of the settlement is 1,30 m thick and includes two forts of habitation. The inner fort is 190 m long and there were lived thracian senior citizens, and the outer is 320 m long and there are traces of other population. It is believed that the settlement was inhabited by XI century. The excavations uncovered the well-preserved remains of burnt houses-collapsed wattle-and-daub walls, house floors, installations such as ovens as well as concentrations of finds in situ. All archaeological materials and features at the site date to the Late Chalcolithic period. The materials correspond typologically to the Late Chalcolithic finds from Durankulak and Varna. Photo by: Petar Petrov /Impact Press Group/NurPhoto

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