958 results for: calcareous

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Rhine at Duisburg Bruckhausen, Marxloh, Thyssenkrupp Steel steelworks, blast furnaces, sintering

BRK26G90_028

Rhine at Duisburg Bruckhausen, Marxloh, Thyssenkru...

Rhine at Duisburg Bruckhausen, Marxloh, Thyssenkrupp Steel steelworks, blast furnaces, sintering

BRK26H02_199

Rhine at Duisburg Bruckhausen, Marxloh, Thyssenkru...

Pamukkale white limestone formations and turquoise water basins, sinter terraces, chalk sinter

BRK26H01_394

Pamukkale white limestone formations and turquoise...

A hot air balloon floats in front of white limestone terraces and a blue sky, sinter terraces, lime

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A hot air balloon floats in front of white limesto...

Chimneys of the Schwelgern coking plant and the sintering plant of the smelting works of

BRK26G19_100

Chimneys of the Schwelgern coking plant and the si...

Warm sulphurous thermal springs, travertine waterfalls with clouds of water vapour, sinter, men

BRK26G50_249

Warm sulphurous thermal springs, travertine waterf...

Lee Vining, California - Tufa towers in Mono Lake. The lake has no outlet, which makes it highly

BRK26G41_399

Lee Vining, California - Tufa towers in Mono Lake....

Lean meadow, altocumulus, cloudy sky with fleecy clouds and birch trees in the Blockheide nature

BRK26G20_282

Lean meadow, altocumulus, cloudy sky with fleecy c...

Palazzo di Giustizia, Palace of Justice, Prati district on the banks of the Tiber, Rome, Italy,

BRK26G39_323

Palazzo di Giustizia, Palace of Justice, Prati dis...

A hot air balloon floats over green countryside and white limestone terraces, sinter terraces, lime

BRK26G17_362

A hot air balloon floats over green countryside an...

A single hot air balloon flies high above white limestone terraces and trees, sinter terraces, lime

BRK26G39_329

A single hot air balloon flies high above white li...

Orange hawkweed, orange-red hawkweed (Hieracium aurantiacum), flower on a rough meadow, close-up,

BRK26G45_387

Orange hawkweed, orange-red hawkweed (Hieracium au...

White terraces and water basins with mountain views in the background, sinter terraces, lime sinter

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White terraces and water basins with mountain view...

Lean meadow, altocumulus, cloudy sky with fleecy clouds and birch trees in the Blockheide nature

BRK26F58_086

Lean meadow, altocumulus, cloudy sky with fleecy c...

A yellow sea sponge, yellow lattice calcareous sponge (Clathrina clathrus), nestles on the seabed

BRK26F81_401

A yellow sea sponge, yellow lattice calcareous spo...

Panorama of travertine terraces with landscape and water basin in the background, sinter terraces,

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Panorama of travertine terraces with landscape and...

The cave is located about 11 kilometres from Alanya on the western slope of Cebeli Reis Mountain,

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The cave is located about 11 kilometres from Alany...

Orange hawkweed, orange-red hawkweed (Hieracium aurantiacum), flower on a rough meadow, Wilnsdorf,

BRK26F91_189

Orange hawkweed, orange-red hawkweed (Hieracium au...

Lean meadow, altocumulus, cloudy sky with fleecy clouds and birch trees in the Blockheide nature

BRK26D31_189

Lean meadow, altocumulus, cloudy sky with fleecy c...

The cave is located about 11 kilometres from Alanya on the western slope of Cebeli Reis Mountain,

BRK26D14_070

The cave is located about 11 kilometres from Alany...

Lean meadow, altocumulus, cloudy sky with fleecy clouds and birch trees in the Blockheide nature

BRK26E05_292

Lean meadow, altocumulus, cloudy sky with fleecy c...

Yellow spectacled weed (Biscutella) on calcareous soils in the high mountains of the Wilder Kaiser,

BRK26E43_068

Yellow spectacled weed (Biscutella) on calcareous ...

The cave is located about 11 kilometres from Alanya on the western slope of Cebeli Reis Mountain,

BRK26E08_450

The cave is located about 11 kilometres from Alany...

Lee Vining, California - Tufa towers in Mono Lake. The lake has no outlet, which makes it highly

BRK26D85_222

Lee Vining, California - Tufa towers in Mono Lake....

Lean meadow, altocumulus, cloudy sky with fleecy clouds and birch trees in the Blockheide nature

BRK26D55_426

Lean meadow, altocumulus, cloudy sky with fleecy c...

The cave is located about 11 kilometres from Alanya on the western slope of Cebeli Reis Mountain,

BRK26D59_486

The cave is located about 11 kilometres from Alany...

Hieracium lachenalii (Hieracium lachenalii), flowering in a rough meadow, Wilnsdorf, North

BRK26D58_308

Hieracium lachenalii (Hieracium lachenalii), flowe...

Autumn helleborine (Spiranthes spiralis), autumn helleborine, small orchids, very rare, flowering

BRK26D57_114

Autumn helleborine (Spiranthes spiralis), autumn h...

Small waterfall at the Gönningen lakes, calcareous tufa nature trail, idyll, nature, at the foot of

BRK26D01_046

Small waterfall at the Gönningen lakes, calcareous...

Lean meadow, altocumulus, cloudy sky with fleecy clouds and birch trees in the Blockheide nature

BRK26C58_270

Lean meadow, altocumulus, cloudy sky with fleecy c...

The cave is located about 11 kilometres from Alanya on the western slope of Cebeli Reis Mountain,

BRK26C69_396

The cave is located about 11 kilometres from Alany...

Autumn helleborine (Spiranthes spiralis), autumn helleborine, small orchids, very rare, flowering

BRK26C66_088

Autumn helleborine (Spiranthes spiralis), autumn h...

Autumn helleborine (Spiranthes spiralis), autumn helleborine, small orchids, very rare, flowering

BRK26C66_261

Autumn helleborine (Spiranthes spiralis), autumn h...

Calcareous ox tongue (Anchusa calcarea), flowering, Algarve, Portugal

BRK26C39_056

Calcareous ox tongue (Anchusa calcarea), flowering...

Limestone terraces against mountain backdrop under cloudy sky, Yellowstone National Park, Wyoming,

BRK26C08_497

Limestone terraces against mountain backdrop under...

Pamukkale, Turkey, April 25th 2020 Large statue of a rooster cock chicken at the entrance to

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Pamukkale, Turkey, April 25th 2020 Large statue of...

Beautiful aqua blue pools of natural mineral rich spring water with many healing properties in

BRK26C18_393

Beautiful aqua blue pools of natural mineral rich ...

Pamukkale, Turkey, April 25th 2020 Foreign tourists enjoy the healing properties of thermal waters

BRK26C18_387

Pamukkale, Turkey, April 25th 2020 Foreign tourist...

Pamukkale, Turkey, April 25th 2020 Pamukkale, Turkey, April 25th 2020 The Turkish town of Pamukkale

BRK26C18_388

Pamukkale, Turkey, April 25th 2020 Pamukkale, Turk...

Pamukkale, Turkey, April 25th 2020 A young tourist having fun in the thermal waters of the

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Pamukkale, Turkey, April 25th 2020 A young tourist...

Stunning aqua blue pools of natural mineral rich spring water with many healing properties in

BRK26C18_385

Stunning aqua blue pools of natural mineral rich s...

Pamukkale Travertine Terraces, amazing aqua blue pools of thermal mineral-rich spring water set

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Pamukkale Travertine Terraces, amazing aqua blue p...

A stunning single green tree set against the unique landscape of the mineral rich thermal

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A stunning single green tree set against the uniqu...

Pamakkule, Turkey, April 25th 2020 Pamakkule, Turkey, April 25th 2020 A tourist carrying her shoes

BRK26C18_374

Pamakkule, Turkey, April 25th 2020 Pamakkule, Turk...

Pamakkale, Turkey, April 25th 2020 A woman and child enjoy the healing properties of thermal waters

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Pamakkale, Turkey, April 25th 2020 A woman and chi...

Pamakkule, Turkey, April 25th 2020 Tourists soak their feet in the thermal waters of the Travertine

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Pamakkule, Turkey, April 25th 2020 Tourists soak t...

Pamukkale in western Turkey, the Cotton Castle, a natural mineral rich rock formation, aqua blue

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Pamukkale in western Turkey, the Cotton Castle, a ...

Pamukkale, Turkey, April 25th 2020 Foreign tourists enjoys the healing properties of thermal waters

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Pamukkale, Turkey, April 25th 2020 Foreign tourist...

Pamakkule, Turkey, April 25th 2020 Tourists enter Travertine Terraces of Pamukkale the mineral rich

BRK26C18_397

Pamakkule, Turkey, April 25th 2020 Tourists enter ...

Pamukkale, Turkey, April 25th 2020 Foreign tourists enjoy the healing properties of thermal waters

BRK26C18_386

Pamukkale, Turkey, April 25th 2020 Foreign tourist...

Stunning aqua blue pools of natural mineral rich spring water with many healing properties in

BRK26C18_380

Stunning aqua blue pools of natural mineral rich s...

Pamakkule, Turkey, April 25th 2020 A tourist soak her feet in the thermal waters of the Travertine

BRK26C18_372

Pamakkule, Turkey, April 25th 2020 A tourist soak ...

Notable rock formations, calcareous tuff formations emerging from calm water, situated under a

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Notable rock formations, calcareous tuff formation...

Funkhaus Wallrafplatz, WDR, architect Peter Friedrich Schneider, travertine building material,

BRK26B65_279

Funkhaus Wallrafplatz, WDR, architect Peter Friedr...

Pamakkale, Turkey, April 25th 2020 Tourists enjoy the healing properties of thermal waters among

BRK26B68_027

Pamakkale, Turkey, April 25th 2020 Tourists enjoy ...

Funkhaus Wallrafplatz, WDR, architect Peter Friedrich Schneider, travertine building material,

BRK26B65_289

Funkhaus Wallrafplatz, WDR, architect Peter Friedr...

Funkhaus Wallrafplatz, WDR, architect Peter Friedrich Schneider, general architecture, commercial

BRK26B65_291

Funkhaus Wallrafplatz, WDR, architect Peter Friedr...

Pamukkale Travertine Terraces, amazing aqua blue pools of thermal mineral rich spring water set

BRK26B68_068

Pamukkale Travertine Terraces, amazing aqua blue p...

Discoloured rock, sinter, Jotunkjeldene, Spitsbergen, Svalbard

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Discoloured rock, sinter, Jotunkjeldene, Spitsberg...

Sintered terraces with rising steam under the sun in the geothermal area of Te Puia, Rotorua, North

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Sintered terraces with rising steam under the sun ...

Lime sinter heels in the marble basins in Yellowstone Park, America, authentic reproduction of a

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Lime sinter heels in the marble basins in Yellowst...

Hieracium lachenalii (Picris hieracioides), hawkweed bitterweed, yellow flower on a rough meadow,

BRK26B01_030

Hieracium lachenalii (Picris hieracioides), hawkwe...

Lime sinter heels in the marble basins in Yellowstone Park, America, authentic reproduction of a

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Lime sinter heels in the marble basins in Yellowst...

Hot spring, discoloured rock, sinter, mountain range, sea, Jotunkjeldene, Spitsbergen, Svalbard

BRK26A30_382

Hot spring, discoloured rock, sinter, mountain ran...

Fossil sponge, petrification, Porifera spec., fossil, campan, chalk, around 80 million years old,

BRK26A21_459

Fossil sponge, petrification, Porifera spec., foss...

Discoloured rock, sinter, Jotunkjeldene, Spitsbergen, Svalbard

BRK26A30_383

Discoloured rock, sinter, Jotunkjeldene, Spitsberg...

Fossil sponge, petrification, Porifera spee., fossil, campan, chalk, around 80 million years old,

BRK26A21_451

Fossil sponge, petrification, Porifera spee., foss...

Yellow rocky landscape with green mountains and dark cloudy sky, Bidara Travertine, Travertine,

BRK26A01_049

Yellow rocky landscape with green mountains and da...

Black Band Disease (BBD), tissue affected by cyanobacteria and sulphate-reducing bacteria first

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Black Band Disease (BBD), tissue affected by cyano...

Close-up of an orange rock structure with surrounding vegetation and moss, Bidara travertine, Jvari

BRK26A01_056

Close-up of an orange rock structure with surround...

Pasque flower, European pasqueflower (Pulsatilla vulgaris) growing on calcareous low-nutrient

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Pasque flower, European pasqueflower (Pulsatilla v...

Orange hawkweed, orange-red hawkweed (Hieracium aurantiacum), flower on a rough meadow, close-up,

BRK26A43_412

Orange hawkweed, orange-red hawkweed (Hieracium au...

Hieracium lachenalii (Picris hieracioides), hawkweed bitterweed, yellow flower on a rough meadow,

BRK26A45_433

Hieracium lachenalii (Picris hieracioides), hawkwe...

Small waterfall, sinter steps, maple leaves in autumn colors, Brühlbach, Maisental, Bad Urach,

BRK25M00_384

Small waterfall, sinter steps, maple leaves in aut...

Discoloured rock, sinter, mountain range, sea, Jotunkjeldene, Spitsbergen, Svalbard

BRK25M83_114

Discoloured rock, sinter, mountain range, sea, Jot...

Discoloured rock, sinter, mountain range, sea, Jotunkjeldene, Spitsbergen, Svalbard

BRK25M17_311

Discoloured rock, sinter, mountain range, sea, Jot...

Hot spring, discoloured rock, sinter, mountain range, sea, Jotunkjeldene, Spitsbergen, Svalbard

BRK25M17_313

Hot spring, discoloured rock, sinter, mountain ran...

Discoloured rock, sinter, Jotunkjeldene, Spitsbergen, Svalbard

BRK25M17_312

Discoloured rock, sinter, Jotunkjeldene, Spitsberg...

Discoloured rock, sinter, Jotunkjeldene, Spitsbergen, Svalbard

BRK25M83_116

Discoloured rock, sinter, Jotunkjeldene, Spitsberg...

Hot spring, discoloured rock, sinter, mountain range, sea, Jotunkjeldene, Spitsbergen, Svalbard

BRK25M83_115

Hot spring, discoloured rock, sinter, mountain ran...

Meadow bellflower (Campanula patula), blue flower, on a rough meadow, Wilnsdorf, North

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Meadow bellflower (Campanula patula), blue flower,...

Silent splendour... Golden thistle (Carlina vulgaris), last year's specimen photographed in early

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Silent splendour... Golden thistle (Carlina vulgar...

Spring is here... Pasque flowers, pasque flowers (Pulsatilla vulgaris), purple flowering

BRK25N02_278

Spring is here... Pasque flowers, pasque flowers (...

Spring awakening... Pasque flower, Pasque flower (Pulsatilla vulgaris), purple flowering

BRK25N02_282

Spring awakening... Pasque flower, Pasque flower (...

In early spring... Cowslip (Pulsatilla vulgaris), classic, typical early bloomer, the small hairs

BRK25N02_281

In early spring... Cowslip (Pulsatilla vulgaris), ...

Landscape conservation with sheep and goats in the Truppacher Heide, Trupbacher Heide nature

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Landscape conservation with sheep and goats in the...

Adonis blue (Polyommatus bellargus), very beautiful butterfly, endangered due to habitat loss,

BRK25M97_156

Adonis blue (Polyommatus bellargus), very beautifu...

Hiking trails in the Truppacher Heide, Trupbacher Heide nature reserve with heaths and rough

BRK25M14_082

Hiking trails in the Truppacher Heide, Trupbacher ...

Landscape conservation with sheep and goats in the Truppacher Heide, Trupbacher Heide nature

BRK25M14_080

Landscape conservation with sheep and goats in the...

Truppacher Heide, Trupbacher Heide nature reserve with heaths and rough grassland, Siegerland,

BRK25M14_083

Truppacher Heide, Trupbacher Heide nature reserve ...

A smooth calcareous tubular worm (Protula tubularia) with spread tentacles in a lively reef in the

BRK25M02_469

A smooth calcareous tubular worm (Protula tubulari...

A single smooth calcareous worm (Protula tubularia) that develops its fine tentacles in dark water

BRK25M02_471

A single smooth calcareous worm (Protula tubularia...

Fumarole, Solfatare Öskjuholt, steaming sinter cone, lime sinter, sulphur vapour, Hveravellir

BRK25M19_493

Fumarole, Solfatare Öskjuholt, steaming sinter con...

Orange hawkweed, orange-red hawkweed (Hieracium aurantiacum), flower on a rough meadow, Wilnsdorf,

BRK25M27_169

Orange hawkweed, orange-red hawkweed (Hieracium au...

Orange hawkweed, orange-red hawkweed (Hieracium aurantiacum), flower on a rough meadow, Wilnsdorf,

BRK25M22_393

Orange hawkweed, orange-red hawkweed (Hieracium au...

180822_221 Terraced pools of hot spring water at Mound Spring in the Mammoth Hot Springs area of

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180822_221 Terraced pools of hot spring water at M...

180822_212 Close up details of the travertine rock of Mound Spring in the Mammoth Hot Springs area

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180822_212 Close up details of the travertine rock...

240914_033 Female elk roaming past the Liberty Cap rock formation in the Mammoth Hot Springs area

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240914_033 Female elk roaming past the Liberty Cap...

180822_132 Terraced travertine expelled from Palette Spring over time in the Mammoth Hot Springs

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180822_132 Terraced travertine expelled from Palet...

A filigree smooth calcareous tubular worm (Protula tubularia) with delicate, fan-like structure in

BRK25L65_456

A filigree smooth calcareous tubular worm (Protula...

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