I'm sure vans will weigh in on this but it seems that higher volume is part of the technical definition as...
Investopedia explains 'Golden Cross' As long-term indicators carry more weight, the Golden Cross indicates a bull market on the horizon and is reinforced by high trading volumes. Additionally, the long-term moving average becomes the new support level in the rising market.
Technicians might see this cross as a sign that the market has turned in favor of the stock.