Fieldwork photographs Billefjorden July 2021

Fieldwork photographs of July 2021 excursion to Billefjorden. Day 0: boat journey onboard Polargirl (company: Polar Charter) from Longyearbyen to Diabasodden and then Pyramiden. Day 1: trip by zodiac boat from Pyramiden to Retrettøya, detailed fieldwork in Proterozoic basement rocks in Retrettøya, and return to Pyramiden by zodiac boat; Day 2: trip by zodiac boat from Pyramiden to Asvindalen, Brimerpynten, Alvrekdalen, and Narveneset. Landing site: Narveneset. Then walking away from the shore from Narveneset to Alvrekdalen and then Asvindalen. Return by foot along the shore in Brimerpynten. Day 3: trip by zodiac boat from Pyramiden to southern Ebbadalen. Then walk along southern Ebbadalen to Proterozoic basement rocks in the east. Day 4: trip by zodiac boat from Pyramiden to northern Narveneset. Hike up and down the slope to the Devonian-Permian unconformity. Then zodiac trip to Lykteneset in the afternoon. Walk upstream all the way up to the footwall of the Balliolbreen Fault into Devonian sedimentary rocks and back downstream. Day 5: trip to Mimerdalen by car (courtesy of Arktikugol) from Pyramiden. Then hike to and along the southern flank of Reuterskiöldfjellet and walk back along northern shore of Muninelva and to Pyramiden. Day 6: trip to Estheriahaugen by car (courtesy of Arktikugol) from Pyramiden. Then hike to and along the crest of Planteryggen all the way to the Permian. Walk down the northeastern flank of Planteryggen and towards two presumed landslides of Permian rocks on the southwestern side of Munindalen, and walk back to Estheriahaugen. Return journey by car from Estheriahaugen to Pyramiden (courtesy of Arktikugol). Day 7: trip to south of Estheriahaugen by car (courtesy of Arktikugol) from Pyramiden. Then hike to Blåvatnet and Fiskekløfta. Return to Pyramiden by car (courtesy of Arktikugol). Day 8: boat journey onboard Polargirl from Pyramiden to Nordenskiöldbreen and then Longyearbyen.

本数据集为2021年7月前往比尔峡湾（Billefjorden）的野外考察影像资料。
第0日：搭乘由极地租赁公司（Polar Charter）运营的“极地女孩号（Polargirl）”，从朗伊尔城（Longyearbyen）出发，先后前往迪亚博索登（Diabasodden）与皮拉米登（Pyramiden）。
第1日：乘坐Zodiac充气冲锋舟（zodiac boat）从皮拉米登前往雷特托亚岛（Retrettøya），在该岛开展元古代基底岩（Proterozoic basement rocks）的详细野外调查，随后乘Zodiac充气冲锋舟返回皮拉米登。
第2日：乘坐Zodiac充气冲锋舟从皮拉米登依次前往阿斯文登谷（Asvindalen）、布里姆尔彭滕（Brimerpynten）、阿尔夫雷克谷（Alvrekdalen）与纳尔瓦内塞特（Narveneset）。本次考察的登陆点为纳尔瓦内塞特，随后从该处沿陆地行进至阿尔夫雷克谷，再前往阿斯文登谷；最终沿布里姆尔彭滕的海岸步行返回。
第3日：乘坐Zodiac充气冲锋舟从皮拉米登前往埃巴达伦（Ebbadalen）南部区域，随后沿埃巴达伦南部向东行进，抵达元古代基底岩分布区。
第4日：乘坐Zodiac充气冲锋舟从皮拉米登前往北纳尔瓦内塞特（northern Narveneset），往返徒步考察泥盆纪-二叠纪不整合面（Devonian-Permian unconformity）所在坡地；当日午后乘Zodiac充气冲锋舟前往吕克滕内塞特（Lykteneset），沿河道上行至巴约尔布雷恩断裂（Balliolbreen Fault）下盘的泥盆纪沉积岩分布区，再沿河道下行返回。
第5日：由阿尔克蒂库戈尔公司（Arktikugol）提供车辆保障，从皮拉米登搭乘其车辆前往米默尔谷（Mimerdalen），随后徒步至路透斯基厄尔菲勒特山（Reuterskiöldfjellet）南翼并沿其行进，沿穆尼内尔瓦河（Muninelva）北岸步行返回皮拉米登。
第6日：由阿尔克蒂库戈尔公司（Arktikugol）提供车辆保障，从皮拉米登搭乘其车辆前往埃斯特雷亚豪根（Estheriahaugen），随后徒步至普兰特里根岭（Planteryggen）山脊并沿其行进至二叠纪地层分布区；沿普兰特里根岭东北坡下行，前往穆尼恩谷（Munindalen）西南侧两处疑似二叠纪岩层滑坡点，随后步行返回埃斯特雷亚豪根；再由该公司提供车辆保障，乘车从埃斯特雷亚豪根返回皮拉米登。
第7日：由阿尔克蒂库戈尔公司（Arktikugol）提供车辆保障，从皮拉米登搭乘其车辆前往埃斯特雷亚豪根南部区域，随后徒步至布瓦瓦特湖（Blåvatnet）与菲斯克勒夫塔（Fiskekløfta），再由该公司提供车辆保障，乘车返回皮拉米登。
第8日：搭乘“极地女孩号（Polargirl）”从皮拉米登前往诺登斯寇德冰川（Nordenskiöldbreen），随后返回朗伊尔城（Longyearbyen）。