Lake Rotomahana, New Zealand: Once were Travertine Terraces

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Coastal geology & environment, Environmental, Geography, Natural Environment, Regional History, Science and society

There’s only a handful of natural travertine rock formations𝔞 in the entire world, but after 1886 there was was one less. In that year in New Zealand’s Rotorua/Bay of Plenty area, the terraced hot springs wonderland known to Pākehā New Zealanders as the “Pink and White Terraces”𝔟 (Ōtukapuarangi and Te Tarata) were obliterated from sight in a massive eruption from nearby Mt Tarawera (Māori: “burnt spear/peaks”)𝔠.

🌋 Charles Blomfield’s painting of the volcanic occurrence

Fallout from the volcano’s eruption blanketed some 15,000 sq kms of countryside with ash in the air travelling as far away as Christchurch, over 800 km to the south. The explosion of volcanic craters reduced Lake Rotomahana (“warm lake”) to mud and ash. The deafening noise and lightning of the dome volcano exploding caused some in Auckland to think that Russian warships were attacking the city [‘The Night Tarawera awoke’, New Zealand Geo, www.nzgeo.com]. The human casualties were almost all Māori, about 120 people died, as well as 10 Māori settlements destroyed or buried.

Blomfield’s painting of Te Tarata

19th century tourist attraction
Nature’s violent removal of the Rotomahana travertines brought an abrupt end to a lucrative little 19th century tourism earner for the local region. Artist Charles Blomfield who painted the two terraces on multiple occasions was an eye witness to the tourist boom, observing groups of “moneyed people” bathing in the hot springs𝔡 while their lunches of potatoes and koura were cooking in the boiling pools (NZ Geo)𝔢. Village residents benefitted—some Māori guides netted incomes of up to £4,000 a year—but the First Nation community also copped the downside from the economic boost, rising illness and rampant alcoholism [‘Tarawera Te Maunga Tapu’, Rotorua Museum, www.rotoruamuseum.co.nz].

Lost and found?
For 120 years New Zealanders thought that all trace of the iconic terraces—the two largest known formations of silica sinter on earth—had vanished. Scientific curiosity in recent decades has speculated whether the terraces has been destroyed altogether or perhaps permanently entombed. Recently, Geologists, drawing on Ferdinand von Hochstetter’s 1859 topographic and geological survey of Lake Rotomahana as a primary source, believe they have found traces of the lost White Terraces in the naturally-restored, crater-enlarged lake [‘A natural wonder lost to a volcano has been rediscovered’, Robin Wylie, BBC, 28-Apr -2016, www.bbc.com]. The terraces are thought submerged under sediment and 50-60 m of lake water.

🔻 1860 lithograph of Hochstetter talking to the Māori rangatira of the White Terraces

New Zealand’s miniature ‘Pompeii’
Right in the firing line of Mt Tarawera when it exploded in 1886 was the tiny village of Te Wairoa and its inhabitants the Tuhourangi people. Engulfed and obliterated by the eruption, it became known as the “Buried Village” of Te Wairoa. These days it has brought back tourism to the area. The excavated village is New Zealand’s most popular archaeological site.

(Source: Flickr.com)

Postscript: the Rotomahana travertines are destroyed but is at least one terraced hydro-thermal springs in the North Island remains. Wairakei Terraces, situated 90 km south of Tarawera in Taupō, is a smaller version of the Pink and White Terraces. This commercial operation is a combination of the synthetic (man-made geyser) and the natural (pink, blue and white silica steps).

🔻Pamukkale, Turkey

🌋 one of the most outstanding examples of travertine formations on the planet is the “Cotton Castle” of Pamukkale in eastern Turkey, with its glistening white-terraced geo-thermal springs sharing the site with the ruins of a Greco-Roman city Hierapolis, making it a world-class tourist magnet. Other extant travertines include Badab-e-Surt in Iran, Mammoth Hot Springs in Wyoming, USA, and Egerszalok in Hungary.

Pink Terraces (Photo: Charles Spencer/ Te Papa)

•••➖•••➖•••➖•••➖•••➖•••➖•••

𝔞 travertines are formations of terrestrial limestone and calcium carbonate deposits around mineral (especially hot) springs, which are often terraced  

𝔟 their names in the Māori tongue translate respectively as “fountain of the clouded sky” and “tattooed rock”

𝔠 nicknamed Te Maunga Tapu (“the sacred mountain”), the volcano lies within a caldera (collapse crater) area

𝔡 the actual numbers of Europeans who visited New Zealand’s version of the “8th Wonder of the World” was not as high as might be thought, owing to the terraces not being easily accessible – from the closest settlement Rotorua it was a trek over hills by horse or buggy followed by a canoe trip and the last section on foot [New Zealand’s Pink and White Terraces’, (Tourism NSW), www.media.newzealand.com]

𝔢 English novelist Anthony Trollope was one of the European ‘celebs’ who fronted up to bathe in the pools and sleep in a whare (Māori hut) next to the terraces (NZ Geo). Trollope found nothing like its waters in the world – “you strike your chest against it, it is soft to the touch, you press yourself against it and it is smooth” [Australia and New Zealand, (Vol.II, 1873]

 

Finland’s Magnetic Island: Jussarö, A Danger to Shipping

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Coastal geology & environment, Regional History, Travel

Its been called a ghost town but the island’s massive concentration of iron ore under the sea⧆ exerts a powerful magnetic pull on passing ships and boats. The island of Jussarö is one of some 40,000 (and counting) islands off the coast that form Finland’s vast archipelago⌖.

(Image: julkaisut.metsa.fi)
(Source: Abandoned Spaces)

The “ghost town” tag comes from the closure of the island’s iron ore mining works in 1967☯ due to a decline in the world price for the mineral (‘Jussarö’, www.en.jussaro.net) …leaving the landscape scattered with the remnants of old industrial buildings abandoned to nature.

⇑ Hanneke Wrome (Image: alchetron.com)

Compass interference, a danger to shipping
The dense concentration of iron ore deposits within the island has been known to make the navigation equipment of passing vessels in the Gulf of Finland go haywire. The magnetic force emitted by the island tends to make ships malfunction and their compasses point in the wrong direction. Historically, a consequence of this has been a large incidence of marine accidents and shipwrecks in the vicinity. In 1468 the Hanseatic League cargo ship ‘Hanneke Wrome’ (or ‘Vrome’) was caught in a storm and wrecked near Jussarö island with the loss of over 200 lives and a vast quantity of expensive fabric, barrels of honey, gold coins and jewellery (‘Finland’s abandoned iron ore mine’, Abandoned Spaces, Bojan Ivanov, www.abandonedspaces.com). Perhaps the most famous shipwreck, known as “Jussarö I”, is a early 16th century ship belonging to the fleet of Swedish king, Gustav I Vasa (‘Jussarö Island’, www.visitraseborg.com). Given this hazard, Jussarö has been a haven for pilot stations and lighthouses (the island’s earliest pilot station dated from early 19th century).

⇑ Sundharu lighthouse

Raseborg’s teeth “ship trap”
Several smaller islands and islets south of Jussarö collectively known as Raseborgs gaddama (Raseborg”s Teeth”) are particularly prone to shipwrecks. This area is known to have caused disturbances in navigation as early as the 17th century. In 1751 Swedish naval cartographer “Jonas Hahn was able to explain the phenomenon by the high iron content in the underwater rock formation in the area”. The Sundharu lighthouse was stationed on one of the skerries here to try to counter the danger (‘Finnish cases: Four case study areas. Case 1 – Jussarö ship trap’, www submariner-net.eu).

When the mining activity ended, Jussarö was taken over by the Finnish Defence Forces and used for military training and urban war simulation. After the army left in 2005 the island came under the administration of Metsähallitus, a state-owned authority in charge of national parks, wildlife and forestry. The main activity today is tourism with day-trippers regularly commuting from the mainland.

Postscript: The island’s 13th century footnote in history
Jussarö first gets a mention in medieval Danish documents, appearing in King Valdemar II’s Survey (or “Court Rolls”), a document compared to William the Conqueror’s Doomsday Book record. The ‘Survey’ of Valdemar II of Denmark (reigned 1202–1241) was a land register of Danish settlements and their populations, c. 1231 (Nils Hybel, The Nature of Kingship c.800–c.1300: The Danish Incident , (2017)). Jussarö is included in the royal survey apparently because it was on the Danish route map (www.en.jussaro.net).

(Source: nationalparks.fi)

𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨𓆨
⧆ the largest deposits of iron ore in Finland
⌖ Jussarö itself lies within the Ekenäs Archipelago
☯ the second time iron ore mining operations had been abandoned on Jussarö, previous it was mined, sometimes using Russian prisoners, from the 1830s to 1861

Slaughterhouse-One: Shanghai 1933

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Built Environment, Heritage & Conservation, Old technology, Regional History

About one kilometre north of Shanghai’s famous riverside Bund, at No. 10 Shajing Road, Hongkou District, is a most unusual building. Grey, monolithic and coldly forbidding in countenance, it is known today as Shanghai 1933 (上海1933老场坊) or “Old Millfun”…here in Shanghai’s former “International Settlement” is what was once “Slaughterhouse No. 1”, the Far East’s largest slaughterhouse.

(Source: Flickr)

The 31,700 sq m circular roof landmark building has been described as an “eerie Gotham-Deco achievement in concrete, glass and steel” (Atlas Obscura). In 2021 it is home to a fashionable collection of boutique shops, offices, restaurants and cafes, and an event venue, though for some wary locals the reputation of its past convinces them it is haunted by bad spirits (‘1933: The Slaughterhouse of Shanghai’, Monica Luau, Culture Trip, 05-Dec-2017, www.theculturetrip.com).

Architecture
The slaughterhouse was designed in the Art Deco style with Beaux-Arts and Bauhaus influences. This was a marked departure from hitherto abattoir designs which had studiously avoided any suggestion of decoration or aesthetics (‘From slaughter to laughter: the renovation of a slaughterhouse in Shanghai by IPPR’, Austin Williams, Architectural Review, 22-Oct-2018, www.architectural-review.com; ‘A Brief History of Shanghai’s Old Slaughterhouse 1933’, Emily Wetzki, that’s Shanghai, 03-Jul-2014, www.thatsmag.com). The primary building material used was poured concrete (Portland cement) imported from Britain.

🔺 “The gigantic parasol” (Photo credit: Architectural Review)

The unorthodox basic form of the Shanghai Slaughterhouse comprises an outer four-storey high square building enclosing a round inner building—with a 24-sided dome roof—the core of which is a central atrium into which light is admitted. The facade consists of iconic lattice windows with circular motifs. The stylised geometry of the lattice windows allows for much-needed ventilation and natural cooling (Williams)

🔺 A multiplicity of interlocking staircases & ramps (Source: Shanghai Art Deco)

The congested and convoluted interior presents a seemingly Byzantine confusion of elements obscuring what was in fact a revolutionary abattoir design. The interior was an Escheresque¶ maze of compartments, winding passages and corridors, scattered rooms, narrow spiral interlocking staircases, bridged walkways (26 sky bridges), twisting ramps, 50cm-thick walls, (300) Gothic columns and (four) verandahs (‘Shanghai’s charmed revealed’, Mu Qian, China Daily, 27-Oct-2011, www.chinadaily.com.cn; Williams).

🔺 Labyrinthine work of MC Escher

The “state-of-the-art” (for its day) slaughterhouse had many advanced features: the latticework exterior circulated air and, along with the extra thick walls, made the building cooler in Shanghai’s summers; safety measures were incorporated into the design – textured floors in the ramp made them slip-proof, and built-in escape niches for workers to jump into in the event of a cattle stampede (‘1933 Shanghai Slaughterhouse’, Hidden Architecture, www.hiddenarchitecture.net).

The abattoir’s design controlled the speed and flow of cattle from one area to the next. The unique multi-storey slaughterhouse made for a rational and hygienic method of working – situating the killing spaces on the highest level “allowed gravity to drain the blood, to lower the carcasses, to drop the waste, collect the hide” below. Such efficiency allowed for more than 1,200 heads of cattle, sheep and pigs to be processed in a single day (producing 130 tons of meat for human consumption) (Williams).

(Photo: Flickr)

Building history
The slaughterhouse continued to function until the 1960s, although between 1937 and 1945 it fell under the control of the occupying Japanese military. After the communist takeover of China in 1949 it officially became “Slaughterhouse # 1”. After the abattoir was closed, the building was converted into a cold storage facility and then a medicine factory.

(Source: Randomwire)

Reborn as a “creative industry zone” Abandoned in 2002, the Old Millfun building was heading for decay and destruction when it was saved in 2008 by a RMB100 million renovation [Architect: IPPR (Shanghai) – Engineering and Design Research Institute] and eventually transformation into a trendy entertainment❂ and shopping hub (Mu).

Architect: Balfours Master Architects (UK). Some sources attribute the building design to CH Stableford, Shanghai Municipal Council architect at the time (construction by Yu Hong Ki Construction Co).

________________________

✥ China before 1933 used the unit of weight, the tael applied to silver, as the unit of currency. A tael was usually equivalent to 1.3 ounces of silver

¶ bringing to mind the intricate, implausibly dense lithographic prints and drawings of Dutch graphic artist MC Escher

❂ among its upmarket tenants is the Ferrari Owners’ Club of China

The Aberscot Diaries MMXIII, A Fragment from Anno 2013

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Biographical, Creative Writing, Memorabilia

Adrift in an ocean of non-sentient beings

I finally received Carol’s death certificate from the unfeeling bots at the Registry of Births, Deaths and Marriages, Glancing through it I noticed that under the sections “Mother’s Name” and “Mother’s Maiden Family Name”, the entries were “Unknown” and “WALKER”. This triggered something in my mind that I hadn’t realised before. Whenever Carol had raised the hate-inducing subject of her mother, she had never mentioned her by first name or by any name for that matter. For Carol, the resentment of her maternal treatment was as fresh and vivid as it was when she was five…the mother-abuser of Carol’s childhood, the denier of their mother-daughter bond, was a non-person, merely and perpetually an accursed thing, not to be dignified with human attribution.

Shipley Art Gallery: ‘The Lost Child’ by A. Dixon

The entry for “Father’s Name” conveyed even less information. Entered on the page were the cold and clinical words that had haunted Carol all her life — (first) “Unknown” and (surname) “UNKNOWN”. Her father’s identity was an enigma—the missing nexus that perhaps would have made her feel more whole—which Carol had always puzzled over unendingly and unknowingly. Now, here it was, official confirmation from Births, Deaths and Marriages so it would seem, that the cloak of anonymity enveloping her natural father would accompany her to the grave. Given that Carol in her life caused such a ripple with so many people who entered within her orbit, touched so many with her selfless kindness devoid of the semblance of a quid pro quo, I wondered to myself, was Carol the known daughter of two unknown (and unknowable) persons? So it does seem.

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