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Care and maintenance is a term used in the mining industry to describe processes and conditions on a closed mine site at which there is the potential to recommence operations at a later date. During the care and maintenance phase, production is stopped but the site is managed to ensure it remains in a safe and stable condition.
Uroleucon rudbeckiae form colonies on many plant species within the genus Rudbeckia. Species such as: Rudbeckia amplexicaulis, Rudbeckia hirta and Rudbeckia laciniata all serve as food plants and habitat for the insect.
Rudbeckia (/ r ʌ d ˈ b ɛ k i ə /) [4] is a plant genus in the Asteraceae or composite family. [ 5 ] [ 6 ] Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans .
Rudbeckia occidentalis is a species of flowering plant in the family Asteraceae known by the common name western coneflower. [1] It is native to the northwestern United States from Washington to northern California and east to Wyoming and Montana , where it grows in moist habitat types, such as meadows.
Rudbeckia hirta is an upright annual (sometimes biennial or perennial) growing 30–100 cm (12–39 in) tall by 30–45 cm (12–18 in) wide.It has alternate, mostly basal leaves 10–18 cm long, covered by coarse hair, with stout branching stems and daisy-like, composite flower heads appearing in late summer and early autumn.
The mine was sold to Gold Fields Limited in 2001. Reliance Mining acquired the nickel rights in 2003 and was acquired by Consolidated Minerals in 2005. [5] The mine was placed into care and maintenance in 2008. It was acquired by Salt Lake Mining in 2013 after that company also secured gold mining rights.
Dracopis is a monotypic genus with Dracopis amplexicaulis (clasping coneflower; syn. Rudbeckia amplexicaulis) the sole species. It is native to North America. It is an annual plant growing to 1 m tall, with simple or branched stems. The leaves are oval, 5–10 cm (2.0–3.9 in) long and 2–4 cm (0.79–1.57 in) broad.
Rudbeckia auriculata is conspicuous in the wild due to its extreme height (occasionally over 3 m (9.8 ft)) as long as the morphological differences with Rudbeckia laciniata L. such as its dissected leaves are noted. [7] R. auriculata is a long-lived perennial.