December 8, 1984

At first glance, the ground inside the ancient redstone wall, bathed in the warm, reflected light of the deep canyon face, revealed nothing but a jumble of stones and dirt. Then Pete Steele, a ranger with the Bureau of Land Management, saw the human bones. ''Man,'' he sighed, ''they've really worked this one over.'' Mr. Steele pointed out a man's pelvic bone, a femur and part of a foot lying in the rubble. Along with a few fragments of skull, they were all that remained of the ancient, pre-Columbian Anasazi Indian grave.

In an unexpected decline, the nation's unemployment rate fell three-tenths of a percentage point in November, to 7 percent, the Labor Department reported today. Except for June 1984, when the rate briefly touched 7 percent, this was the lowest level since President Reagan took office in January 1981. Private analysts, most of whom had expected little or no change in unemployment, said the fresh decline provided reassurance that the sharp slowdown in economic growth since midyear was only a pause and that a recession did not loom. ''It's a promising development,'' said Richard D. Rippe, a senior vice president at Dean Witter Reynolds.

Alfred B. DelBello today announced his resignation as Lieutenant Governor of New York. Mr. DelBello - who has been in public office for 20 years, as Mayor of Yonkers, as Westchester County Executive and as Lieutenant Governor since 1982 - said he was leaving Feb. 1. He will become president of a new company that sells waste-disposal, resource-recovery and pollution-treatment plants to local governments. ''It will offer me and my family the opportunity, maybe, to have a little more normal life than we've had for the past two decades,'' Mr. DelBello said as he made the announcement at a late-afternoon news conference here with Governor Cuomo at his side.

The chairman of the Union Carbide Corporation was arrested today as he arrived in Bhopal and was charged with criminal conspiracy in connection with the insecticide plant gas leak that killed an estimated 2,100 people and injured tens of thousands. He was released on bail six hours later. The chairman, Warren M. Anderson, was arrested along with two senior officials of Union Carbide India Ltd., Keshub Mahindra, the chairman, and V. P. Gokhale, the managing director, who were also charged in connection with the gas leak and remained in police custody tonight. The American company owns 50.9 percent of the stock of the Indian subsidiary. Anderson 'Looked Fine' After his release, the 63-year-old American executive arrived here early this evening on a plane provided by the Indian Government and went directly to the United States Embassy. A diplomatic source there said Mr. Anderson ''looked fine'' and had reported no mistreatment by Indian authorities.

Canada's Progressive Conservative Government today proposed the abolition of many rules that set out to control the type and size of foreign investment in the nation. The tone of the proposal, put forth by the pro-business party, was in sharp contrast to the nationalistic policies of the former Liberal Government under Pierre Elliott Trudeau. Those policies were widely criticized, especially in the United States, which is the largest foreign investor in Canada, as being excessively bureaucratic and frightening away new investors. The new policy ''is saying to the world that we want to encourage as much investment as possible,'' Sinclair Stevens, the Minister of Industry, said. He added, ''When we say we want to dismantle needless barriers to enterprise in this country, we mean it.''