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Hypervelocity impacts can generate hydrothermal systems, which have been suggested as candidate environments for prebiotic chemistry on the early Earth. The Haughton impact structure (a 23 km diameter crater located on Devon Island, Nunavut, Arctic Canada) displays evidence of water‐rock alteration indicative of a hydrothermal system generated from a cosmic impact. To model the formation of this crater and subsequent hydrothermal alteration, we have successfully developed a new two‐code methodology that utilizes a shock physics code and a hydrothermal code (HYDROTHERM). We can best reproduce the Haughton crater with a ∼700 m diameter projectile with an impact velocity of 14 km/s. With our approach, we were able to match all the major geological constraints observed at the Haughton impact structure. Our models show that the Haughton crater interior could have sustained temperatures ideal for thermophilic and hyperthermophilic life (50–120°C) for more than 50,000 years, indicating that these systems can sustain prebiotic chemistry and life for longer than previously estimated. Plain Language Summary: Impacts of cosmic objects moving at hypervelocity can create high‐temperature hydrothermal systems. These environments have been suggested as possible sites for the formation of prebiotic chemistry on early Earth. The Haughton impact structure on Devon Island, Nunavut, Arctic Canada, has a well‐studied impact‐generated hydrothermal system and offers a unique analog to similar systems on early Earth or Mars. Here, we present a two‐code modeling technique to model the full evolution of the impact‐generated hydrothermal system at Haughton. We were able to match the major geological constraints observed at the Haughton structure. Our models suggest that the Haughton crater interior should have sustained temperatures ideal for early life (50–120°C) for >50,000 years, indicating that these systems can sustain life for longer than previously estimated. Key Points: The Haughton impact structure can be better modeled utilizing a smaller impactor (∼700 m in diameter) than previously estimatedWe successfully match a multitude of observed fluid alterations observed at Haughton with our novel two‐code methodologyOur models show that the Haughton crater interior sustained temperatures ideal for thermophilic and hyperthermophilic life for >50,000 years [ABSTRACT FROM AUTHOR]

In this paper, the consumption of various infrastructure systems in Calgary, Alberta by residential, commercial, and industrial sectors is considered. Statistical models are developed to quantify the influences of built form factors, in addition to traditional factors of sociodemography. Analyses are performed by census community for electricity, transportation by mode of travel, and demolition permits by their size and frequency. The employment of a common methodology in a single geography allows for comparison across infrastructure systems and determination of common patterns. Assessing total consumption does not necessarily lead to a consistent interpretation. By differentiating electricity consumption by sector and transportation by mode, consistent analysis can be conducted that identifies the correct relationships. We find a trend toward increasing consumption of electricity use moving out from the center of the city, but also an increasing reliance on the private automobile. [ABSTRACT FROM AUTHOR]